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Related to hundred: Hundred Years War

110 proof

Extremely strong or potent. Its original sense refers to the alcohol content of liquor. This cleanser is 110 proof. If it can't get the stain out, nothing can.
See also: 110, proof

800-pound gorilla

A person, group, or organization so powerful (either by size or by influence) that it does not need to heed the rules or threats of others. It refers to the riddle "Where does an 800-pound gorilla sit?" (Answer: "Wherever it likes.") Primarily heard in US. Don't mess with that guy; he's like an 800-pound gorilla! These big corporations act like 800-pound gorillas, making up the rules to suit themselves.
See also: gorilla

a hundred and ten percent

An effort towards something that is greater than one believes one is capable of doing, i.e., beyond 100% of one's ability; often used as a motivation in sports. Primarily heard in US. Alright guys, we all need to dig deep for the second half of the game. Go out there and give a hundred and ten percent and bring home a win!
See also: and, hundred, percent, ten

bat five hundred

To be correct or successful around half of the time. Taken from baseball terminology, referring to the average times a player makes a hit when at bat (i.e. the batting average). One hit for every two at-bats is a .500 batting average. Primarily heard in US, South Africa. That math exam didn't go so well, I only batted five hundred or so. The market is so hit and miss at the moment, you can only really expect to be batting five hundred at best.
See also: bat, five, hundred

give 110%

To put forth the absolute maximum amount of effort or energy possible (i.e., even more than is usually required or seems possible). We're going to have to give 110% if we want to get this project finished by the deadline. A win today secures our spot in the championship, so go out there and give 110%!
See also: give

apply for Chiltern Hundreds

To leave one's job/office/post. If members of the British House of Parliament wish to resign from office before the end of their term, they must apply to the honorary post of the "Chiltern Hundreds" (an obsolete administrative district in south-central England). Primarily heard in UK. I can't stand this job's stressful clients and erratic schedule any longer—it's time for me to apply for the Chiltern Hundreds. You better give Mark a raise or something. Otherwise, I think he's going to apply for the Chiltern Hundreds, and then you'll have to fill his position all over again!
See also: apply, Hundred

oh dark hundred

In military time, a non-specific time in the early morning, before the sun rises. Why are we meeting at oh dark hundred? That's too early to do anything besides sleep!
See also: dark, hundred, oh

the Four Hundred

The wealthiest and most powerful of the social elite. The phrase allegedly originated from the number of people that Caroline Schermerhorn Astor (wife of US millionaire John Jacob Astor) could fit inside her ballroom. Primarily heard in US. Thanks to my new husband, I am now part of the Four Hundred and the recipient of many jealous looks.
See also: four, hundred

it's a million to one that

It is extremely unlikely that (something will happen or be the case). They say they're working toward a solution, but with congress deadlocked they way they are, I reckon it's a million to one that they pass any legislation on the issue. The tech company has stated that it's a million to one that their new facial recognition software can be fooled by a picture or a similar-looking person.
See also: million, one, that

it's a hundred to one that

It is extremely unlikely that (something will happen or be the case). They say they're working toward a solution, but with congress deadlocked they way they are, I reckon it's a hundred to one that they pass any legislation on the issue. The tech company has stated that it's a hundred to one that their new facial recognition software can be fooled by a picture or a similar-looking person.
See also: hundred, one, that

not a hundred/thousand/million miles away

Only slightly different; quite similar (to something else). Your answer isn't quite right, though it isn't a million miles away. This laptop isn't a hundred miles away from the top-end computers, and it's much more affordable!

by the dozen

in groups of 12. (Compare this with by the dozens.) Eggs are normally sold by the dozen.
See also: dozen

do a one-eighty

 and turn one hundred and eighty degrees 
1. Lit. to turn around and go in the opposite direction. When I hollered, the dog did a one-eighty and headed back to its own yard.
2. Fig. to radically reverse a decision or opinion. His political philosophy turned one hundred and eighty degrees when he grew a little older.

first hundred years are the hardest

Prov. The first hundred years of your life are the hardest, and after that, you can expect things to get easier; in other words, your whole life will probably be difficult. (A jocular, ironic way to console someone who is having difficulties.) Don't worry; things are bound to improve for you. The first hundred years are the hardest.
See also: first, hard, hundred, year

one in a thousand

 and one in a hundred; one in a million
Fig. nearly unique; one of a very few. He's a great guy. He's one in million. Mary's one in a hundredsuch a hard worker.
See also: one, thousand

by the dozen

Also, by the hundred or thousand . According to a definite quantity, as in She's buying tapes by the dozen. This usage is generally employed for some kind of rate. A 1950 film about efficiency expert Frank Gilbreth and his family was entitled Cheaper by the Dozen. [c. 1300]
See also: dozen

by the ˈdozen

many at the same time: On her birthday, she always receives cards by the dozen.
See also: dozen

a hundred/thousand/million and one things/things to do, etc.

(informal) very many or too many (things to do, people to see, etc.): I’m so busy — I’ve got lectures to prepare and a hundred and one letters to write — I just don’t know where to start.She’s always got a thousand and one excuses for everything.

a/one hundred per ˈcent

completely: I agree with you one hundred per cent.
See also: cent, hundred, one, per

not a hundred/thousand/million ˈmiles away/from here

(humorous) used to identify somebody/something indirectly: The person I’m talking about is not a hundred miles from here, but I’m not in a position to say who he is.We’re talking about a factory not a million miles away.

it’s a hundred, etc. to one that somebody/something will (not) do something

it is almost certain that somebody/something will (not) do something: It’s a hundred to one that the train will be late.It’s a million to one that she’ll finish before us. She always does.

not/never in a hundred, etc. ˈyears

(spoken) used to emphasize that you will/would never do something: I’d never have thought of that in a million years.
See also: never, not, year
References in classic literature ?
D'Artagnan went instantly to the hay dealer and bargained with him for a hundred and fifty trusses of straw, which he obtained, at the rate of three pistoles each.
He was cautioned not to let a bit of straw out of his hands under a louis the truss, and they intrusted to him straw to the amount of four hundred and thirty louis.
Do you call a handkerchief with such lace, and all this magnificent work on it, and which cost a HUNDRED DOLLARS, foolish?
Yes," she added, "two hundred millions; besides sixty millions of odd money
A month later he paid eight hundred dollars for the adjoining claim.
In the meantime, and from the day he washed seven hundred dollars from a single pan and squatted over it and thought a long thought, he never again touched hand to pick and shovel.
We were to see much of the Black Hundreds as the days went by.
And by 1901 they had put in use more than a million telephones and were professing to have a capital of a hundred millions.
I left fifteen hundred pounds with my wife, and fixed her in a good house at Redriff.
There appeared in the papers caricatures of every gigantic and imaginary creature, from the white whale, the terrible "Moby Dick" of sub-arctic regions, to the immense kraken, whose tentacles could entangle a ship of five hundred tons and hurry it into the abyss of the ocean.
Twelve hundred pistoles to the tailor; that seems a great deal for clothes," said he.
Augustine's account, who had received the profits for above fourteen years; but not being able to account for what was disposed of by the hospital, very honestly declared he had eight hundred and seventy-two moidores not distributed, which he acknowledged to my account: as to the king's part, that refunded nothing.
The principal aim of his journey was to reconnoitre Lake Tchad, from which he was still three hundred and fifty miles distant.
I agree with you, my good friend; and, in fact, following this proportion for a projectile nine feet in diameter, weighing 30,000 pounds, the gun would only have a length of two hundred and twenty- five feet, and a weight of 7,200,000 pounds.
Also, he was in debt three hundred dollars to the Six Companies--you know, they're Chinese affairs.