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Related to atomic wedgie: atomic weight
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!
n. an instance of pulling someone’s underpants up very tightly—from the rear—so that the cloth is pulled between the victim’s buttocks; a severe wedgie or melvin. I’m going to sneak up behind Bob and give him an atomic wedgie.