floppy watermelon

The art of placing your penis underneath an elderly woman's boob and thrusting, thus causing it to flop and turn a watermelon-red color.

"Dude, your grandma was smokin last night."
"Ew gross man!"
"Yeah I totally gave her a floppy watermelon. Twice."

by Dicks'n'Sizzle March 6, 2014