(very informal) to fuck around; to fuck up

(vulgar, theater, slang, idiomatic) break a leg! good luck!

(vulgar) holy fucking shit, Jesus fucking Christ

(figuratively) to be up to your neck in trouble, to be up shit creek

(France, vulgar, blasphemous) Jesus fucking Christ; holy fucking shit (indicates anger or surprise)

(vulgar) to be fucking blind, to not notice the obvious

(vulgar, derogatory, figuratively) to think the sun shines out of one's arse, to think one's shit doesn't stink, to think one is the shit, to think one is hot shit (to be full of oneself, to think highly of oneself)

(rather vulgar) to be cross-eyed, to be squint-eyed, to squint

(slang, literally and figuratively, vulgar) shitty; crap; shit

(slang, vulgar) a little shit; a little bastard