Mixing a Protein Shake

Another term for male masturbation, especially when caught out in public by women performing that act.

When confronted the suspect explained to police that he had been Mixing A Protein Shake.

by jesster79 August 19, 2016

whipped up a protein shake

Received a blow job

Guy #1: Really? Right there in the restaurant parking lot?
Guy #2: Yep, I guess she was still hungry so I whipped up a protein shake.

by TheBigHouse April 21, 2012

Protein Shake Out of a Meat Straw

Very Simple.

Its a healthy way to offer a girl a chance to give you head.

"Hi, oh wow. Your really in shape... How would you like to have a Protein Shake out of a Meat Straw©?"

by Platinum Romeo November 15, 2006

Protein Shake

Cum, ejaculate

My Tinder date loved my late night protein shake, she took it all in one swallow.

by Park Here. May 1, 2021

Protein shake

When you jack off into your mouth in order to get your protein for the day.

Yo Jordan I had the best protein shake ever this morning!

by Negromancer420 May 9, 2019

australian protein shake

When six men cum in a girl's vag, hold her upside down, shake her, and then pour the contents into a cup and she drinks it.

Back in my day, when I craved a protein shake, I'd pop over to Belind's house with my five mates and have an australian protein shake.

by rumancer April 7, 2018

Aggie Protein Shake

A synonym for semen, used in College Station Texas and at UC Davis

Tiffany decided to top-off on some Aggie Protein Shake after the big UT/A&M game.

by abam2 April 30, 2016