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Food Idioms
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100

let the cat out of the bag

 shared a secret/ruined a surprise

100

draw blood

to take blood from someone

100

tie the knot

get married

100

big cheese

 a person with a lot of power

100

barking up the wrong tree

looking in the wrong place

200

the ball is in your court

the decision is up to you

200

up for grabs

available for anyone

200

on cloud 9

very happy
200

piece of cake

easy

200

time flies

time goes by quickly

300

don't judge a book by its cover

don't judge something by its appearance

300
raining cats and dogs
raining really heavily
300

green thumb

good with gardening

300

going bananas

going crazy

300

fish out of water

someone who is uncomfortable in a situation

400

you can say that again

I agree

400

ants in your pants

moving a lot/jittery

400

all ears

actively listening

400

couch potato

someone who just watches TV

400

chill out

relax or calm down (either is acceptable)

500

hit the road

leave/time to go

500

at the drop of a hat

at the last minute

500
blue moon

very rarely

500

a bad egg

someone who can't be trusted

500

break the ice

to make people more comfortable