When you put the ingredients of a protein shake in a girls gaped vagina and then fuck her, mixing it, which you then poor in a glass and drink it.
How are your gains going bro? Hittin'up those suppliments?

Yeah bro, my girl let me do The Protein Shake last night, feelin strong
by UncleKony September 12, 2018
Get the The Protein Shake mug.
-Yo, she really took your protein shake?
-Hell yeah! She swallowed like a pro!
by ripR1 August 17, 2008
Get the protein shake mug.
The Sexual process of masturbating a male and catching the semen in your mouth.
Hooker: I like to keep myself healthy by enjoying a protein shake right after a heavy workout session.
by Jared Ellis March 9, 2008
Get the Protein shake mug.
"Last night Amber swallowed a big cup of my protein shake. She said it was deeeeee-liscious!"
by B.Diddy August 3, 2007
Get the Protein Shake mug.
A sexual act in which one person shoots jizz (a protein shot) into the other's mouth and then shake their head vigorously.
Gwen: "Let's get out of here and grab a beer."
Richard: "Are you insane? You know my midterm and finals ritual. I study til 11, 9 solid hours of sleep, protein shake in the morning."
(from 'Van Wilder')
by Nick D February 26, 2004
Get the protein shake mug.
In the world of strength-athleticism, supplements for growth are often used. Protein shakes are powedered substances which are mixed with milk, oragange juice etc. to produce a drink apporoximately 70% protein.

consumed after exercise, the protein rebuilds the muscle bigger and stronger.
by Kung-Fu Jesus April 17, 2004
Get the protein shake mug.