Um well fucking yourself...
Masturbation
What your mom does at night...
She was pounding the flounder.
Male masturbation, jerking off, etc...
Q: What's Mike up to this weekend? A: Since his girlfriend is away he's probably gonna sit home and pound the flounder.
The act of masturbation.
"Did you get caught pounding your flounder when your parents came down for the family orgasm"
17👍 6👎
For one to have intercourse with a third-wheel.
John should have a sweet night, said he'd even have a go at pounding the flounder! Prim 👌