Animals
Food
Money
Time
Fire
100

It's raining cats and........

dogs

100

I'm going to relax and just be a couch .........

potato

100

Be careful with my camera, it cost me an arm and a .....

leg

100

Even a broken ......... is right twice a day.

clock

100

Me and my neighbour get on like a ....... on fire

house

200

The early bird catches the.......

worm

200

I don't like opera music, it's not my cup of .......

tea

200

Printer ink is worth it's weight in .......

gold

200

Be careful, better ......... than never

late

200

I got my ....... burned when I tried playing the stock market

fingers

300

Curiosity killed the ......

cat

300

You can't make an ............ without breaking some eggs

omelet

300

This money is burning a hole in my ............

pocket

300

Time flies when you're having ........

fun

300

Fight fire with .......

fire

400

Nobody wants to talk about the......... in the room

elephant

400

Sometimes I feel like a ........ out of water

fish

400

If you pay ......... you get monkeys

peanuts

400

I think ........ will freeze over before that happens.

hell

400

I've been burning the ........ at both ends

candle

500

The straw that broke the ............ back

camel's 

500

It's no use crying over spilt ........

milk

500

There's no such thing as a free ..............

lunch

500

I only see my family once in a blue ........

moon

500

My suggestion didn't help, it just added ......... to the fire

fuel