Thumb Lock

When having a girl bent over and fucking her in the pussy you shove your thumb in her ass and hook it so you can hold on and she can't get away.

I thumb locked my girlfriend and she loved it.

Thumb Lock by joemomma69 April 13, 2011

thumb locker 

Two small natural holes on the lower back of the girls.

When you see the girl lower back from behind, there might be two small holes, which will fit the thumbs of the hand if you grab the girl around the waist. That will lock the thumbs from sliding on the girls back. Thumb locker will allow the person holding the girl's waist to hold her firmly.

thumb locker by Little Fluffy Clouds January 8, 2012

thumbcock 

When you are being photographed, you place your hand underneath an article of clothing --- for example, your jacket --- and allow your thumb to stick out near your groin area, to resemble a penis.

"The chess team's yearbook photograph was ruined when Dimitry decided to pull a thumbcock."

Another example:

"The photograph of the wedding party was ruined when one of the groomsmen decided to thumbcock the photographer."

thumbcock by NJRogerFeld September 8, 2009

thumbsock 

A glove for someone named DENNIS

It was cold in da hood so DENNIS put on his thumbsock!!

thumbsock by Chris OZ Brown April 3, 2008

double thumblock 

whilst doggystyling a female partner, insert both thumbs into anus and bend at the first knuclke joint of the the thumbs and pulling towards yourself

john wanted to fuck doggystyle but his girlfriend decided she wasnt into it. John then applied the double thumblock problem solved his girlfriend couldnt get away.

double thumblock by Dfuzed Cell September 19, 2009

Thugblockers

Large wrap-around sunglasses used, as during poker games, to conceal where one is looking. See Hater Blockers.

"As long as I have these Thugblockers (sic) on, you can't tell what I'm thinking, but I can tell what you're thinking"
-Creepa (adapted)

Thugblockers by crank that, batman October 23, 2008

thumblock

a greco-roman wrestling move, originating from southwest florida, in which one grappler penetrates the other's asspipe with his thumb

throw in the thumblock!!

thumblock by Chuck Blonde January 5, 2008