Butterflies in my stomach		Everything; all of it
Give me a hand		Help me
Ants in your pants		Something very easy to do
A fish out of water		Being destructive or careless
In the dog house		Copying or imitating someone
A bull in a china shop		Wait a moment
Pig out		When someone is very restless or active
Cat got your tongue?		I am very excited/nervous
Monkey see, monkey do		Give away a secret
Hold your horses		To eat a lot
A piece of cake		When someone is in trouble
Costs an arm and a leg		Rarely; it doesn't happen often
One in a blue moon		When you are uncomfortable; out of your comfort zone
Whole nine yards		When something is very expensive
Spill the beans		When someone talkative is being quiet