(intransitive, figuratively, informal) not to go in for half-measures, not to half-ass it; not to embarrass oneself with manners

(informal) to want no part of it, not to be that kind of person, not to be interested

Alternative form of les chiens ne font pas des chats

Synonym of à ne pas mettre un chien dehors

(of the weather) awful, dreadful

(informal) tell me about it!

Alternative form of ce qu'il ne faut pas entendre

(archaic or humorous) Nothing comes out of nothing.

when you love, you don't count the cost (when one loves someone, one is ready to do anything for them; when one loves something, one is ready to devote a lot of time or money to it)

(figuratively) not to have given up, to still be in the game