Definitions by Dicks'n'Sizzle
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."
"Ew gross man!"
"Yeah I totally gave her a floppy watermelon. Twice."
floppy watermelon by Dicks'n'Sizzle March 6, 2014