The Flounder 

A very sneaky foreplay moved performed by short Jewish guys from Long Island. Not realizing that the girl is not into him while sitting on her couch, the dude places his hand in between the girl's thighs and flaps it back and forth in the same motion as a fish out of water. The flounder is normally followed by dog-like leg humping.
If performed properly, the flounder-leg hump trick is good way to ensure the "No Pants in the Bedroom" rule is followed. If awkward while doing this move, the dude is usually sent on his way hoping to catch the end of Rosh Hashanah dinner.

"When Yaacov tried the flounder, the date was over."

"I wasn't into Isaac at first, but, after he floundered me, I got to see that my pants really did match the rug...and he found out the color of the carpet"

The Flounder by Irish-Italian Manwhore September 25, 2006

The Flounder 

When a girl shits on your penis and u flick it into her vaginal canal while wearing a flounder costume.

We did The Flounder last night while we watched henti.

The Flounder by Webster’s Dick-tionary January 8, 2021

The Flounder BJ 

A sex act in which the male or female performs fellatio on their partner. With one partner kneeling, the other partner stands to one side of them, with their crotch facing their partner who is kneeling. The kneeling partner dips their head forward looking toward the ground, then in the direction of the standing partner, so that only half of their face (and one eye) is visible to their partner. From the perspective of the "blow(ee)", their partner below looks like a flounder at the bottom of the sea.

He looked her in the eye while she was giving him The Flounder BJ.

While giving him the Flounder, she noticed her carpet needed to be vacuumed, AND the ceiling fan was dirty.

The Flounder BJ by TheOneAndOnlyBowser July 23, 2019

pounding the flounder 

Um well fucking yourself...
Masturbation
What your mom does at night...

She was pounding the flounder.

pounding the flounder by Did bish August 28, 2016

pound 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.

pound the flounder by FunnyMFer March 30, 2010

pounding the flounder 

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 👌

pounding the flounder by TheFlameBurnsWickr September 1, 2016

Flop the flounder 

Taking a pee with a big cock!

I've drank so much, I have to flop the flounder!

Flop the flounder by John Zombie September 30, 2025