Hit the sack
Go to sleep
Hit the roof
to be angry
Out of the woods
Out of danger
Sounds fishy
sounds suspicious/not right
Cold feet
becoming unsure about doing something
In a pickle
in trouble
Pay an arm and leg
very expensive
Butter someone up
be nice to someone to get what you want
On the tip of my tongue
Can't think of what you were going to say
Chip in
to help with work or to help pay for something
Bring home the bacon
earn money
hold your horses
wait
