|knock up [B]
||become pregnant, in a family way
||She doesn't want to get knocked up, so she uses a contraceptive.
|knock you down a peg
||say you are too proud, put him in his place
||If you are too cocky, Don will knock you down a peg.
|knock you out
||amaze you, blow your mind
||You should see The Phantom of the Opera. It'll knock you out.
|knock your socks off
||surprise you, perform better than you expect
||This music will knock your socks off! It's rock and roll!
||eliminated from a competition or series
||Our team was knocked out during the semi-final games.
||stunning appearance, beautiful body
||When Jackie wears that red party dress, she's a knockout.
||know you should not do that
||Why did you take the candy? You know better than to steal.
|know inside out
||know a method well, know an occupation well
||After 30 years in real estate, he knows the business inside out.
|know like the back of your hand
||know an area well, know every feature of the land
||I lived here for years. I know this town like the back of my hand.
|know the first thing...
||(See don't know the first thing about)