mouth off

to speak out of turn; to backtalk

that bitch has a reputation four mouthing off at the worst possible moments, I should cut her throat before she says any other stuff!

don't mouth off at me, you fuckin prick

make a stand

to make an effort to defend something or to stop something from happening

what's this all of a sudden? you're gonna rise up and make a stand now?

when shit gets fucked up, you know it's time to make a stand and change things