Top Definition
When an underage boy is getting a hand job from a woman and tells them, "It's too dry." The woman immediately stops and that is the end of their sexual encounter At that point the underage male is left with some unwanted, painful blockage and a bruised ego.
I thought that girl was such a slut until she gave me a R Gannon last night

Im sick of being underage I want something more than an R Gannon.

Daddy all I want for Christmas is an R Gannon.

That Dookie I took last night reminds me of an R Gannon.
by D Garv November 23, 2008

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