Is there something that you say at home that would sound wacky anywhere else?
At our house, we once threw a piece of cheese to get the dog to go into the office so we could exit the house without him running out the front door. Since then, we just fling air and say "get the cheese" and he goes in every time. So we call it "cheesing the dog" or "putting the dog in the cheese". Would that not make you raise an eyebrow if you overheard it in someone's conversation?
What wackiness goes on at your house?