Thompkins 

A Happy Family that haves ups and downs but always stick together

Who is that the Thompkins family

Thompkins by Lilbbg August 17, 2016

thompkins 

means a fatass that smells

thompkins by Anonymous October 22, 2003

thumpkin 

Masterbating while taking a shit

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

thumpkin by bulwinkle April 11, 2007

Tompkins 

The act of ejaculating into somebodys hair and having it freeze.

Mark totally just gave that chick a tompkins.

Tompkins by Wholeden February 19, 2007

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.

Double Thumpkin by |fn|Gravyfury December 30, 2007

Muddy Thumpkin 

The act of jamming both your thumbs up a someones anus and proceeding to twiddle them around like you are using a game controller.

Person 1: Hey man are you still with your girl?
Person 2: Nah man she broke up with me after I gave her the ole Muddy Thumpkin

Muddy Thumpkin by xXPoonMonsoon69Xx June 3, 2016

Double Thumpkin

Placing the right thumb in the vagina, and the left thumb in the butthole.

My wife moaned and groaned as I gave her a no-lube double thumpkin.

Double Thumpkin by SlimGravy January 16, 2019