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 likebriannalove, 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
A pair of titties so wonderful they make you shoot a load that drains your sack.
Sheila's rack is perfection. In fact, after making a dickwich with her last night, I nearly drowned her in my man rain. I now have to recharge my balls. I guess you could say Sheila's got cumdustable bust!
From the game Portal 2. A lemon with the power to explode and start a fire. Yelled by Cave Johnson via an old recording while Chell and Glados navigate through the abandoned part of Apeture Science laboratories.
"I'm gonna get my engineers to invent a combustable lemon that burns your house down!"-Cave Johnson