cum fumble

The phenomenon that occurs when - right at the moment of climax - your grandma calls. Essentially, any action that ruins an imminent orgasm.

Can also be called the cumble fumble or simply cumble.

Guy - "Oh baby, I'm gonna cum."
Girl - "Fill my sweet poonani with you jizzum, please!"
Guy - "Urm.. I think you just cum fumbled me."

by conbonjovi December 10, 2009