whistle past the graveyard

grin and bear it

cut a fine figure

cut quite a figure

thumb one's nose

make a big thing out of

pee oneself

pee one’s pants

piss one’s pants

soil one’s pants

wet one’s pants

antagonize

make a show of oneself

make an exhibition of oneself

fox in the henhouse

let the fox guard the henhouse

hit the road

court somebody

go Dutch

bomb

get out of Dodge

take a break

do the job properly

roost

leap

hullabaloo