go nuts

freak out go crazy

become demented become psychotic blow a fuse collapse come apart at seams decline derange deteriorate fail flip out go bonkers go off deep end go off rocker go out of mind go to pieces have breakdown sicken

be calm

blow a gasket blow one's mind blow one's stack blow one's top crack up fly off the handle freak out go ape go ballistic go berserk go crazy go haywire go off the deep end hit the ceiling lose control of oneself lose it lose one's composure lose one's mind lose one's temper wig out

go crazy lose it

blow a gasket blow one's mind blow one's stack blow one's top break down come unglued crack up flip one's lid flip out fly off the handle go ape go ballistic go bananas go berserk go haywire go off the deep end hit the ceiling lose control of oneself lose one's composure lose one's cool lose one's mind lose one's temper wig out work oneself up

freak out go off lose it

blow a gasket blow one's mind blow one's stack blow one's top crack up flip one's lid flip out fly off the handle go ballistic go bananas go batty go berserk go bonkers go buggy go cuckoo go daffy go haywire go kooky go loco go loony go mental go nutty go off one's rocker go off the deep end go off the wall go psycho go wacko go wacky lose control of oneself lose one's cool lose one's mind wig out

crack up flip flip out go bananas lose one's mind

crack up flip flip out go bananas go insane lose one's marbles lose one's reason lose one's senses lose one's wits