Guess the idiomatic expression

piece of cake

piece of pie

piece of icing

slice of cake

fish out of bowl

fish in cold water

fish splashing out of water

fish out of water

hug your horses

squeeze your horses

hold your horses

lift your horses

heart of yellow

beating heart

Midas gold

heart of gold

kettle of fish

kettle and fish

fish in a kettle

fish and kettle

falling cats and dogs

wet cats and dogs

raining cats and dogs

a storm of cats and dogs

hot bun

hot brown

hot bread

hot potato

cat clawed your tongue?

cat got your tongue?

cat took out your tongue?

cat pawed your tongue?

a bug wrapped in a rug

a bug snug in a rug

a bug's life

a bug rolled in a rug

run an extra mile

sprint the extra mile

go the extra mile

walk an extra mile

flutters in the stomach

x-ray and butterflies

stomach x-ray

butterflies in the stomach

go down in flames

rocket down in flames

shoot down in flames

spiral down in flames

once in a new moon

once in a full moon

once in a blue moon

once in a half moon

getting chilly

getting colds and flu

getting frozen silly

getting cold feet

multiple ears

get an earful

willing to listen

all ears

apple of my eye

green eyed

pink eye

all eyes

pigs in the sky

flying pigs

when bacon fly

when pigs fly

too flexible

bend over backwards

bend so you can see

backbone breaker

unusually close

best friends forever

joined at the hip

joined in sickness and in health

let the cat inside the bag

let the cat stay in the bag

let the cat out of the house

let the cat out of the bag

two peas in a pod

green peas in a pod

two peas in the pond

two peas shared the pod

sword in a haystack

pole in a haystack

needle in a haystack

pin in a haystack

add petrol to the fire

add oil to the fire

add water to the fire

add fuel to the fire

run home with the bacon

bring home the bacon

steal the bacon

grab hold the bacon

open up a can of worms

open up a can of snakes

open up a can of caterpillars

open up a can of slugs