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16.
An inside reference to the genitalia of one, Jacob. This is due to the fact that said non-circumcised penis suspiciously resembles a thumb, sans the nail. Upon closer examination (a daunting task in and of itself) this third 'thumb' is quite grotesque and awkwardly suited for aural insertion. Beans are meat.
Pineapple. Thumb. Hooked Pickle.
by Traust May 19, 2008
 
1.
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!
I'd like to shove my thumb up those people's asses.
by Phlegatu May 11, 2004
 
2.
small picture online, usually which can be clicked on.
"I love porn thumbs"
by falln June 18, 2004
 
3.
the only thing on megan fox that doesnt turn my penis into 3 inches of pure concrete.
oh man i was totally going to spank it to transformers 2, until i saw...the thumbs.
by ZBreezy June 28, 2009
 
4.
The unattractive and/or short and/or fat person in a group that the others will eventually ditch before the night is over.
Don't worry, we'll lose the thumb before we hit the clubs.
by Nutrageous February 21, 2009
 
5.
The bump that forms in the zipper of mens' pants that is often mistaken for an erection
Girl: Look at that boner
Guy: It's a thumb goddammit...THUMB I TELL YOU!
by Kommander_K May 14, 2009
 
6.
What makes us genetically superior.
I have opposable thumbs, so I am better than you.
by HecTiiK September 14, 2009
 
7.
(verb) Using a finger to push a small object into your buttocks.
ED: "Hey Randy how can we make this ecstasy really kick in?"
RANDY: "I say we thumb it!"
by Effthis1906 April 01, 2010