like one's life depended on it, as if there were no tomorrow

for the life of one, to save one's life, for sour apples, for toffee

(transitive) to reduce to its simplest form, to its simplest terms; to reduce to the bare minimum

(slang) to be exhausted

(informal, figuratively) to conceal one's true feelings, to hide what one really thinks, not to reveal one's true convictions or allegiances

an Englishman's home is his castle, a man's home is his castle

(Quebec, informal, idiomatic) Emphatic form of attacher sa tuque

Alternative form of ne pas avoir sa langue dans sa poche

you snooze, you lose

Alternative form of qui part à la chasse perd sa place: you snooze, you lose