Someone who not only makes you horny but makes you want to cum just thinking about them. Just the thought or sight of them makes you want to nut all over and/or inside them.
duante: Look pear-shaped bitches like brianna love, mya g and miya g, they be so cumbussable

kanye: ye gentles got a ass that would swallow up a g-strings and up top, two bee stings
Get the Cumbussable mug.