The phenomena of how seemingly normal panties instantly become heavier when worn by a slutty girl.

The added weight tends to causes panties to drop at a faster speed.
"How much do think Kim's micro thong weighs?"

"At least 3 lbs, maybe 7 by the time the frat boys come over later"
"Yeah, I just hope her heavy panties don't make a loud *thud* when they hit her bedroom floor like last night"
by d1sKoBisCuiT December 23, 2015
Get the heavy panties mug.
Slang for "You shit your pants so fucking bad the shit is dripping from your leg"
Awe my little Heavy Panty! *sucks the shit out*
by JeromeTheSalanditMolester November 21, 2021
Get the Heavy Panty mug.