| Idiom | Meaning | Example |
| knock |
criticize, put down
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Don't knock the teacher. She's trying to help us learn.
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| knock against |
(See the knock against)
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| knock around with |
be friends with, hang around with
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Lynn used to knock around with us. She was our friend.
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| knock flat |
knock down, knock over
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The flag pole was knocked flat - hit by a truck.
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| knock it off |
stop it, do not do that
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When we teased the bull, Dad told us to knock it off.
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| knock me over with a feather |
I was very surprised, I could not believe it, blow me down
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When she told me she was married to my ex-husband, you could have knocked me over with a feather.
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| knock off |
remove, kill
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One by one, the wolves were knocked off - shot by hunters.
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| knock out |
hit a person until he is unconscious, out cold
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You punched him very hard. You knocked him out.
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| knock the wind out of his sails |
cause him to slow down, cause him to quit, knock him down a peg (see knock you down a peg)
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If you tell him his letter is full of errors, you'll knock the wind out of his sails.
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| knock them down, drag them out |
fighting, brawling, Donnybrook, no holds barred
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After the game, a few soccer fans began to fight. It was a knock-em-down-drag-em-out brawl.
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