knock (one) dead

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knock (one) dead

To strongly impress one. Often used as an imperative to give encouragement. Good luck on the audition! Knock 'em dead, kid! Your design is going to knock the judges dead. They're going to swoon over it.
See also: dead, knock

knock dead

Greatly amuse, astonish, or thrill someone, as in This new song will knock them dead. This slangy hyperbolic expression was first recorded in 1889. Also see knock the socks off.
See also: dead, knock

knock 'em dead

INFORMAL
If you say that someone or something will knock 'em dead, you mean that they will impress people very much. Glamorous make-up is best reserved for evenings, or days when you want to go all out to knock 'em dead. Note: You can also say that something will knock someone dead. Their debut album is going to knock you dead. Note: The word `'em' is a form of `them' which is used in informal or non-standard English.
See also: dead, knock

knock someone dead

greatly impress someone. informal
1991 Julia Philips You'll Never Eat Lunch In This Town Again I'm good at public speaking. I've been knocking them dead at seminars.
See also: dead, knock, someone

knock somebody ˈdead

(spoken) impress somebody very much: You look fabulous — you’ll knock ’em dead tonight.
See also: dead, knock, somebody

knock someone dead

tv. to put on a stunning performance or display for someone. She knocked us dead with her stunning performance.
See also: dead, knock, someone

knock dead

1. To kill with a blow.
2. Slang To affect strongly and positively: a performance that knocked the audience dead.
See also: dead, knock
References in periodicals archive ?
But the latest photo really appeals, so drop by the shop on Worth Avenue in Palm Beach where, they say, this new crepe tie blouse (as well as in a dress and jumpsuit) is knocking them dead in Orange Mint and Tabloid Turquoise.
In a review of one of his concerts last year, The New York Times called him the ``only musician today who can reach so deeply first into the refined, then the vernacular, giving his listeners a complex, sophisticated piece of early-21st-century classical music and then knocking them dead with the brown-dirt whine of a Texas fiddle.
Soon Max is wowing them on 180AD's answer to the showbiz circuit, taking on all-comers and literally knocking them dead.
Born and bred in the cornfields of "Spooky World'' and Nightmare New England as its (haunted) house band, The Dead and the Damned has been knocking them dead (only figuratively, I hope) for years and can turn any club (including the Lucky Dog) into a Halloween happening in the pointy tail-end of winter that would even scare the bejesus out of Rob Zombie.
And, if you're already thinking about knocking them dead at the pool this summer, try out the new yellow hot crochet bikini complete with hot summer flame motive from Killah
Fast-forward 45 years and The Deborah McDonnell Band is packing them in and knocking them dead with an irresistible blend of contemporary bluegrass, country, folk and rock.