1 definition by cayb

Top Definition
the protein one gets from swallowing after fellatio. or simply, the protein contained in semen that can be ingested when giving a blow job.
"hey hon, your hair isn't looking so shiny, lemme give you some brotein!" (high fives any surrounding buddies)
by cayb March 14, 2010
Mug icon
Buy a brotein mug!