the act of giving a consumating.com profile as many thumbs down as possible in order to decrease that user's popularity ranking
Elliott's rise to #1 most popular profile on consumating.com was a farce, and turned into quite the scandal after Ben Brown revealed that Elliott only achieved such internet-based notoriety after a vicious campaign of thumb bombing others via numerous fake profiles.
by Elliott February 15, 2006

by mark fuckin g December 23, 2010

When you are pleasuring your girl (i.e. wife, girl-friend, female friend with privileges, local slut, myspace whore.....) and your thumb "accidentally" slips into her asshole instead of her vagina.
by Fatboi AKA "Wetback" n proud February 16, 2009

by shooter August 29, 2005

When you are having sex with a girl doggy style you use your thumb to either rub her asshole or stick it in there like you would on a bowling ball.
While Brian was banging the girl from behind, her ass was postioned perfectly and so he proceeded with dropping the thumb.
by Kentucky Bo January 12, 2008

by Moper69 November 2, 2016
