Thumpkin

The act of masturbating while taking a shit.

While sitting on the toilet, waiting for the turd to drop, I took advantage of my alone time and gave myself a thumpkin.

by Davidtavis April 02, 2017

Thumpkin

A more powerful blumpkin; a blumpkin with 'a little more umph.' A quickly and fiercely delivered blumpkin, often resulting in massive amounts of shit water and semen splatter with heavy collateral.

1. So my girl sat me down on the john and we proceeded to experiment with a blumpkin. It went downhill from there and I ended up getting more of a thumpkin than anything else. By the end of it, us and the whole god-damned bathroom was covered in shit and cum.

2. Yeaup, so I pressured Lisa into giving me a blumpkin the other day... bad idea. Instead I got a massive thumpkin that blew out the lights and shattered my mirror. The toilet's fucked too.

by mcautistic April 07, 2013

thumpkin

Masterbating while taking a shit

dude my phone fell in the toilet while I was doing the thumpkin

by bulwinkle April 05, 2007

thumpkin

Recieving head while taking a shit

My high school lacrosse coach told us of the thumpkin his girlfriend gave him.

by Exit30six November 24, 2003

thumpkin

one who is being a ass

dum thumpkin

by Monkey Man April 08, 2003

thumpkin

when somebody gives a man a blowjob while playing call of duty.

Yo, yesterday i was playing cod and my girlfriend gave me a thumpkin

by The Tuck March 03, 2011

Double Thumpkin

When you stick your thumb in the bumm and the love hole and alternate in and out in and out in and out as fast as you can making a noise like "nenenenene"

Tole threw trash out of the car when I told her not to so I gave her a double thumpkin.

by |fn|Gravyfury December 04, 2007