(idiomatic) To gradually increase speed or output.

(chess) A rule in professional chess that a player may declare the game to be a draw after 50 consecutive moves by each side without any capture or pawn movement, usually invoked during an inconclusive endgame.

(chess) The rule stating that, if a player intentionally touches a piece when it is their turn, they must move or capture the piece if it is legal to do so.

(euphemistic) To excrete feces from one's bowels: to defecate.

(chess) The quickest possible checkmate; the fool's mate.

plural of two-move checkmate

(South Africa) An easily transported mobile coffee cart

To initiate something.

Alternative form of take down a notch

Alternative form of take down a notch