Top definition
verb
1. Fapping whilst taking a shit
2. Bringing oneself to orgasm while in the process of defecating
"Last night I was giving my self a fumpkin and it was so hard to finish because my shit smelled so horrendous!"
by nym November 02, 2013
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2
The action of the girl sitting on your penis while taking a shit
Hey sweetie instead of a Blumpkin tonight how about a Fumpkin instead !?
by Jake Hughes21 May 07, 2017
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