pounding the porpoise 

To jerk off. To masturbate. To stroke one's own cock (usually with much vigor).

Damn, my cock is sore! Since Sara shot me down, I've been pounding the porpoise to an old Hustler. I really need to get me some for-real nookie!

pounding the porpoise by Blenderhead1991 September 7, 2010

Chokin' The Porpoise 

When a girl gives a guy with a short stubby dick a handjob.

I was getting action from my girlfriend last night and she wanted to stop jerkin' my dick, but i was like "No bitch, keep Chokin' The Porpoise."

Chokin' The Porpoise by Vantality Akenfa April 9, 2010

brown porpoise 

When two men are having anal sex and making porpoise noises, they are brown porpoising.

I heard two men brown porpoising the other night. I was quite perturbed.

brown porpoise by becky April 12, 2005

Quarter Porpoise 

The stage between a flaccid penis and a full erection.

"Dude she rubbed her butt up against me, and I'm at quarter porpoise right now"

Quarter Porpoise by registeredmurse October 22, 2022

Magenta Porpoise 

the pink/reddish exposed penis of a dog, extending past the foreskin of an erect dog.

Check out the magenta porpoise on Rick's horny doberman!

Magenta Porpoise by Andy December 22, 2004

pump the porpoise 

slang term meaning to masterbate

when i get home i'm gonna pump the porpoise tonight!

pump the porpoise by G60Corrado March 29, 2005

purposeful porpoise 

an accidental dolphin, but on purpose

I was getting tired of that chick, so i gave her a purposeful porpoise.

purposeful porpoise by pdxrhino April 27, 2006