2 definitions by conbonjovi

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
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To be interrupted in the moment of intercourse. This interruption ruins the moment. Similar to the cock block, but during sex.
Guy 1 - "Dude, not only did her friend unsuccessfully try to cock block me all night, when I finally put it in her I got a phone call from my mom."
Guy 2 - "Man, your mom hump trumped you!"
by conbonjovi December 10, 2009
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