wedgies

A wedgie is the act of forcibly pulling a person's underpants upwards from the back. The act is often performed as a school prank or a form of bullying.
Wedgies are commonly featured in popular works, either as a form of low comedy or as a behaviour representative of bullying. In such works, briefs are usually the type of underpants that are worn by the victim.

View More On Wikipedia.org
Top