to attend school (somewhere) / to do one's basic training (somewhere) / to learn the ropes (somewhere)

to make hay

(informal) to crap oneself, to shit oneself (to lose control of one's bowels and accidentally defecate on oneself) / (informal) to shit oneself, to shit one's pants (to be extremely frightened)

to pass off as

(idiomatic, impersonal) to get late

(rare, figuratively, of a woman) to go it alone, to go solo

(transitive with de) to extol

(euphemistic, idiomatic) to snuff it, to kick the bucket (to die)

(vulgar) go get fucked!; go fuck yourself!; fuck you!; fuck off!

(informal) to get lost, go to hell