Bitch Boy Share definition Flag A male who is a sissy or submissive that like's getting his ass fucked, usually by a dominant woman wearing a strap on Mistress Theresa made Phillip her Bitch Boy. Sinking her 9" rubber cock deep in his ass! Bitch Boy by Mix it up June 28, 2011 0 0 Get merch Get the Bitch Boy mug. Buy Now — $32.95 See more merch