Self Serve Bro-Yo Share definition Flag When a guy self sucks his own penis and finishes inside of his mouth. He got horny and decided to suck his own penis and mistakenly ejaculated in his own mouth giving him self a self serve Bro-yo. Self Serve Bro-Yo by Oooo weeee May 20, 2018 Get the Self Serve Bro-Yo mug.