When a person gives a melvin (wedgie) to an unsuspecting soul and proceeds to make them walk forward or lose their cherished jewels.
Bro: "Dude, why are you walking like you've been butt plugged?" Dude: "Fuck Bro, Man crept up behind me yesterday and gave me the ultimate Melvintrot. He made me tiptoe around the block, i'm lucky my sac ain't bleeding!"
by Dakeboy 59 October 28, 2011