Definitions by Dan Houseman

boo boo 

A boo boo is usually assosiated with someone who makes a large mistake, and who then usually gets humiliated by other people. Or you can yourself be called a boo boo, if you constantly make mistakes.

"Hey trevor you just made a large boo boo".

"You are the biggest boo boo ever".

boo boo by Dan Houseman April 16, 2008