a dog's life
a feather in one's cap
a hard nut
a matter of life and death
all night long
cool as a cucumber
at any price
at one's own risk
at someone's beck and call
at the top of one's voice
bag and baggage
be afraid of one's own shadow
when pigs fly
wipe the floor with somebody
work wonders
x marks the spot
can hear a pin drop
zero hour
zip one's lip
