stank mouth bitch Share definition Flag A female with an undesirable stench emanating from her mouth, which is usually filled with snaggle teeth. I was digging her until that stank mouth bitch leaned in and opened that nasty hole in her face. stank mouth bitch by Boons-R-Us August 5, 2014 0 0 Get merch Get the stank mouth bitch mug. Buy Now — $32.95 See more merch