split a gut
lose one's shit
go ham
blow a fuse
lose one's cool
fuse
hit the roof
lose it
blow one's top
throw one's toys out of the pram
drop one's bundle
mitigate
short-tempered
forget oneself
ill humor
snittiness
temper temper
monkey
offcome
temperative
fit
scene
burst a blood vessel
tantrum
conniption
froth at the mouth
retemper
grumps
get on someone's bad side
impetuosity
radge
ill-humored
foam at the mouth
freak out
quick
sick and tired
misset
for fudge's sake
ragequit
do cheetah flips
ire
irascibility
crank
temperance
kick up
owliness
heated
get someone's Irish up
get someone's dander up
do one's block