It's raining cats and (blank)
dogs
I'm going to relax and be a couch (blank)
potato
(blank) is money.
time
I was in the wrong (blank) at the wrong time.
place
There is no smoke without (blank)
fire
black
You can't make an (blank) without breaking some eggs.
omelette
Be careful with the camera; it cost me an arm and a (blank)
leg
Even a broken (blank) is right twice a day.
clock
house
Curiosity killed the (blank)
cat
It's no use crying over spilt (blank)
milk
gold
Time flies when you're having (blank)
fun
Fight fire with (blank)
fire
elephant
Sometimes I feel like a (blank) out of water.
fish
monkeys
I think (blank) will freeze over before that happens.
hell
I've been burning the (blank) at both ends.
candle
The early birds catches/ gets the (blank)
worm
We're like two (blank) in a pod.
peas
There is no such thing as a free (blank)
lunch
I only see my family once in a blue (blank)
moon
My suggestion didn't help; it just added (blank) to the fire.
fuel