ants in your pants

Ants in your pants is more of a modern day cliche spoken by children, teens and some young adults. When someone says you have ants in your pants, they are talking about the fact that you seem agitated, on edge, or cant seem to sit still. It is also another way of saying someone seems very excited about something in a physical way as proven by not sitting still; as a person would if they literally had ants in their pants.