Coitus Coach Share definition Flag An alternative to 'fuckbuddy'. Two people who share purely physical relations. Danny : Have you heard about Joe?! He's dating Alice! Adie : Nah man. He's just her coitus coach. Coitus Coach by Gdog. August 28, 2009 0 0 Get merch Get the Coitus Coach mug. Buy Now — $32.95 See more merch