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not in a month of Sundays

Not at any point; under absolutely no circumstances. Not in a month of Sundays did I think that I would actually win the lottery! John: "Do you think Samantha will agree to go on a date with Jake?" Tony: "Not in a month of Sundays!"
See also: month, not, of, Sundays

never in a month of Sundays

Not at any point; under absolutely no circumstances. Never in a month of Sundays did I think that I would actually win the lottery! John: "Do you think Samantha will agree to go on a date with Jake?" Tony: "Never in a month of Sundays!"
See also: month, never, of, Sundays

that/(one's) time of the month

The time, usually once a month, at which a woman begins to menstruate. I've had horrible cramps and have been really tired lately. It must be coming up on that time of the month again. A: "I made a joke about it being Sally's time of the month, and she punched me in the face!" B: "Good for her. You had it coming."
See also: month, of, time

a month of Sundays

An impossible event used as an analogy for something the speaker thinks will never happen. You want to borrow my car? Oh, sure—in a month of Sundays! He is never going to graduate, not in a month of Sundays.
See also: month, of, Sundays

by the day

one day at a time. I don't know when I'll have to leave town, so I rent this room by the day.

by the month

one month at a time. Not many apartments are rented by the month. I needed a car for a short while, so I rented one by the month.
See also: month

days running

 and weeks running; months running; years running
days in a series; months in a series; etc. (Follows a number.) I had a bad cold for five days running. For two years running, I brought work home from the office every night.
See also: days, running

(I) haven't seen you in a month of Sundays.

Rur. I haven't seen you in a long time. Tom: Hi, Bill Haven't seen you in a month of Sundays! Bill: Hi, Tom. Long time no see. Bob: Well, Fred! Come right in! Haven't seen you in a month of Sundays! Fred: Good to see you, Uncle Bob.
See also: month, of, seen, Sundays

in a coon's age

 and in a month of Sundays
Rur. in a very long time. (The coon is a raccoon.) How are you? I haven't seen you in a coon's age. I haven't had a piece of apple pie this good in a coon's age.
See also: age

flavor of the month

suddenly but temporarily popular This rap artist is pop music's current flavor of the month.
Etymology: based on the custom of selling a different special flavor of ice cream (frozen sweet food) every month
See also: flavor, month, of

month after month

repeatedly for many months You have to pay for Internet access month after month.
Related vocabulary: day after day
See also: after, month

month by month

every month I look at my bank statements month by month, and I can tell you to the penny how much we spend.
Related vocabulary: day by day
See also: month

the flavour of the month

  (British & Australian) also the flavor of the month (American & Australian)
someone or something that has suddenly become very popular, but may not remain popular for long Role-playing games are suddenly the flavour of the month.
See also: month, of

not in a month of Sundays

if you say that something will not happen in a month of Sundays, you mean that it is not likely to happen He'll never run the marathon, not in a month of Sundays.
See also: month, of, Sundays

by the day

Also, by the hour or week or month or year . According to a specific time period, as in I'm renting this car by the day, or He's being paid by the hour. This usage generally describes some kind of rate. [1400s]

month of Sundays, a

A long time, as in I haven't seen Barbara in a month of Sundays. This expression, which would literally mean thirty weeks, has been used hyperbolically since it was first recorded in 1832. One writer suggests it originally connoted a long dreary time, since games and other kinds of amusement used to be forbidden on Sunday.
See also: month, of

month of Sundays

An indefinitely long period of time: It will take you a month of Sundays to chop all that wood.
See also: month, of, Sundays
References in classic literature ?
By August, when Bell's patent was sixteen months old, there were 778 telephones in use.
After four months of incredible suffering, their baggage having been pillaged, and their attendants beaten and slain, they arrived at Kazeh, a sort of central rendezvous for traders and caravans.
About three months after the opening of the school, and at the time when we were in the greatest anxiety about our work, there came into market for sale an old and abandoned plantation which was situated about a mile from the town of Tuskegee.
Which ain't got nothing to do with me as long as you furnish the beer, pay me due an' proper what's comin' to me the first of each an' every month, an' pay me off final in San Francisco.
Passing from the lapse of the summer months at Venice, to the lapse of the summer months in Ireland, it is next to be recorded that Mrs.
The phrase, "at the month's end," meant, as I understood it, at the last hour of the last day in the month.
I was doing for thirty dollars a month what they had received eighty dollars for doing.
Such as using tooth-powd--" but here Dan stopped abruptly, remembering the Story Girl's plea for a beautiful month.
765-767) Mark the days which come from Zeus, duly telling your slaves of them, and that the thirtieth day of the month is best for one to look over the work and to deal out supplies.
During the month of February the workmen had to contend with a sheet of water which made its way right across the outer soil.
Now I don't mind being here almost ten months, and I didn't miss the wedding, anyhow.
Sergey Ivanovitch had calculated to a nicety the time necessary for writing a review, but a month passed, and a second, and still there was silence.
Her father grew worse; her time was more entirely occupied in attending him; her means of subsistence decreased; and in the tenth month her father died in her arms, leaving her an orphan and a beggar.
House-hunting in the other end of town ceased, and on Pine Street, between Fifth and Fourth, and in immediate proximity to the great Southern Pacific railroad yards, Billy and Saxon rented a neat cottage of four small rooms for ten dollars a month.
That the Trust was to lapse, and that the young gentleman was to receive the twenty thousand pounds on the day when he came of age, in the month of February, eighteen hundred and fifty.