A combination of a regular wedgie
and a melvin
First the victim is given a regular wedgie then the attacker pulls the victims underwear up at the front- causing the underwear to be dragged out of your butt and up at the front.
This is repeated several times and usually by two people (one at the front, one at the back) pulling alternatly.
Note: The victim has to be wearing pants/trousers during a squeaky-clean or the underwear won't stay wedged in.
Also it should be noted that doing this to a girl is unbelievably painful and should only be done to someone who really deserves it
Once I was hanging out at my friends house and laying on her bed when she suddenly came up behind me and gave me a wedgie (my underwear had been showing) she picked me up by my pink panties then let go, then my other friend gave me a melvin and the panties ripped across my pussy
and burned. Giving me a squeaky-clean wedgie
They did this about 10 times and I started to orgasm from it.But I got them both back in the night by putting them in jock-lock wedgies