atomic wedgie
slang A very severe wedgie, a maneuver in which someone's underwear is yanked up from behind until it is wedged between their buttocks, typically as a prank. Come on, let's give that nerd an atomic wedgie!
give (one) a wedgie
To yank one's underwear up from behind until it is wedged between their buttocks, typically done as a prank. The group of bullies gave him such a bad wedgie that he could barely walk. These pants I'm wearing are giving me a wedgie while I walk.
wedgie
A maneuver in which someone's underwear is yanked up from behind until it is wedged between their buttocks, typically as a prank. I don't know if it's the pants I'm wearing or the underwear, but I keep getting a wedgie while I walk. The group of bullies gave him such a bad wedgie that he could barely walk.