One of your five fingers. That's right! It's a FINGER. The thumb is a finger, so fuck you assholes who say you have four fingers and a thumb!
by Phlegatu May 11, 2004

When fucking and you get brewers droop or can't manage anything more than a slack-on, one is required to 'thumb it in'
As seen on many porno's
As seen on many porno's
by Diamond Dave April 28, 2004

by dufa October 13, 2006

"Should have put your thumb over the end of it" was the quote of the year at Dysart Golf Club on 07/06/2017 ....
by Bondee May 26, 2018

by jonathon willabarto demicree lindsense August 10, 2006

Used to describe the appearance of a very obese person whose face and double chin have merged into one unit.
by FergusonTO35 October 21, 2010

To hitchhike.
by Mr. Marino March 29, 2021
