Often incorrectly labeled a "supplement" (negative connotation) by the popular media, protein powder is powdered food consisting mainly of the macronutrient protein. It is used by athletes and bodybuilders to more easily obtain high levels of daily protein intake, a condition advantageous toward muscle gain.

There are different kinds of protein powders, with whey protein being the most popular.
The bodybuilder mixed protein powder and creatine into a shake and then drank it.
by FooberFoober September 15, 2005
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n. This is the resulting powder after you have depositing cum into (or onto) your cum dumpster (see also fuck buddy). Once this ejaculate dries and is rubbed or brushed against, it produces a fine powder known as protein powder.
Last night I gave Lisa a Superman, when I woke up this morning the sheet had come unglued and there was protein powder all over my new fucking sheets! I had to make that bitch snort up all of that shit before I received my blumpkin!
by enhanced April 14, 2010
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When a man has a woman shit into a cup the he grinds into a finite powder. This powder is used as protein powder as he eats it before a workout and then she pisses in his mouth to wash it down
Dude instead of my normal soy pre workout protein I tried Ass Protein Powder with my Girlfriend

That’s great man, what flavor?

by Dollar Tree Glasses June 15, 2021
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