kakistocracy- a government composed of poopyheads
keep in check- to kick someone while they're down
kibbutz- a company town run by a non-profit
kneel- to stand on one's knees, shins, and hyperextended toes
knight-errant (noun)- someone who goes around and kills. Knights also kill, so that makes the knight-errant a hero too, right?
knockout- a game where you wait in line, shoot a basketball, get back in line, shoot again, nope, you missed, now wait for the next game.
know where your bread is buttered- I am important to you; obey me
kulak- a rags-to-riches story that was only possible thanks to the help of politicians