[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 […] A Dictionary of American Idioms

knock oneself out

[knock oneself out] {v. phr.}, {informal} To work very hard; make a great effort. * /Mrs. Ross knocked herself out planning her daughter's wedding./ * /Tom knocked himself out to […] A Dictionary of American Idioms

knock about

[knock about] or [knock around] {v.} To travel without a plan; go where you please. * /After he graduated from college, Joe knocked about for a year seeing the country […] A Dictionary of American Idioms

knock off one's feet

[knock off one's feet] {v. phr.} To surprise (someone) so much that he does not know what to do. * /Her husband's death knocked Mrs. Jones off her feet./ * […] A Dictionary of American Idioms

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Chinese proverb

Beat your child once a day. If you don't know why, the child does.

to foul one's own nest

[to foul one's own nest] {v. phr.} To compromise unintentionally one's own interests by sharing private information […]

slap-head

[slap-head] {n.} {adj.} A bald man.

Generica

[Generica] Fast food joints, strip malls, sub-divisions as in "we were so lost in generica that I couldn't remember what city […]

[GJ] "Good job", often sarcastic

from rags to riches

[from rags to riches] {adv. phr.} Suddenly making a fortune; becoming rich overnight. * /The Smiths went from rags to riches […]

off the wall

[off the wall] {adj. phr.} Strange; out of the ordinary; stupid. * /He has been making off-the-wall remarks all day; […]