Bobsleigh at the 2010 Winter Olympics – Two-woman

Ross knocked herself out planning her daughters wedding./ /Tom knocked himself out to give his guests a good time./ Compare: BREAK ONES NECK, FALL OVER BACKWARDS, OUT OF ONES WAY. [knock on wood]{v. phr.} To knock on something made of wood to keep from having bad luck.Many people believe that you will have bad luck if you talk about good luck or brag about something, unless you knock on wood; often used in a joking way. /Charles said, "I havent been sick all winter." Grandfather said, "Youd better knock on wood when you say that."/ [knockout]{n.}, {slang} 1. Strikingly beautiful woman. /Sue is a regular knockout./ 2. A straight punch in boxing that causes ones opponent to fall and lose consciousness. /The champion won the fight with a straight knockout./ [knock out]{v. phr.} To make helpless, unworkable, or unusable. /The champion knocked out the challenger in the third round./ /The soldier knocked out two enemy tanks with his bazooka./ [knock over]{v. phr.} To overturn; upset. /I accidentally knocked over the ...»