by xtehWalrusx December 30, 2011

Another term for male masturbation, especially when caught out in public by women performing that act.
by jesster79 August 19, 2016

someone who puked, in VERY proper terms. just like there is no such thing as toilet paper anymore, now it's bathroom tissue.
the dinner my wife cooked was so disgusting that i became the participant of an involuntary personal protein spill!
by rockin' randall 1973 March 18, 2010

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.
Guy #2: Yep, I guess she was still hungry so I whipped up a protein shake.
by TheBigHouse April 21, 2012

"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

by Andy July 25, 2004

Protein throat splash is when a guy cums inside of someone's mouth and hits the back of their throat.
by phoreversurf February 11, 2018
