Top Definition
1- A playful term for being a horny male

2- A silly but harmless twit
I've got a bad case of the rumbleballs!

Aw, don't pay attention to rumbleballs over there; he's just being being an ass.
by Batrastard April 21, 2003
When your spooning with your partner, the person in front farts, resulting in rumbling of the balls.
"babe! you just gave me Rumble balls!"
by RumblerT September 04, 2011

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