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

What the frick frack diddily dack patty wack snick snack crack pack slack mack quarterback crackerjack biofeedback backtrack thumbtack sidetrack tic-tac is this shit 

The ultimate expression of "What the fuck", this word is to be used only in the most extreme of situations. Brutal overuse of this term could lead to a tear in the fabric of the universe, causing reality to fall apart at an abstraction rate of 7.59 Cuils per second. Please be very careful with the word you have just read. The power of the cosmos rests in your hands.

John Watson: Holmes, I do believe this was not a murder, but in fact a suicide.
Sherlock Holmes: What the frick frack diddily dack patty wack snick snack crack pack slack mack quarterback crackerjack biofeedback backtrack thumbtack sidetrack tic-tac is this shit
Universe: *collapses*
Watson: dammit Holmes

What the frick frack diddily dack patty wack snick snack crack pack slack mack quarterback crackerjack biofeedback backtrack thumbtack sidetrack tic-tac is this shit by Fetchez la vache March 28, 2015

thumbdick 

–noun (offensive)

1. a person with a penis the size of a thumb.
2. a stupid, irritating, jackass.

ftballrulz: WAna cyber ?
PalePumpkinHead: This is your mother, thumbdick.
ftballrulz: u r a bull dyke.

thumbdick by PalePumpkinHead December 15, 2008

Thumbcaca 

another word for funny hat

Hey dude check out thats guys thumbcaca

Thumbcaca by Zangtar king of the moon June 1, 2011

thumbfucked 

To get a thumbs down vote on urban dictionary.

Someone just thumbfucked me on urban dictionary.

thumbfucked by jpg3 July 17, 2011

Thumbtack 

Some one who lies about everything and exaggerates the truth.

Zack Langford just told me that he had a threesome what a thumbtack

Thumbtack by Zachethethumbtack October 9, 2011

Flaming Thumbtack 

a synonym for the NFL Team, the Tennessee Titans. This is due to the fact that their logo bears an uncanny resemblance to a flaming thumbtack. Brought to the mainstream by Gregg Easterbrook, of Tuesday Morning Quarterback fame.

"The Flaming Thumbtacks are gonna go all the way this year with Vince Young leading the way!"

Flaming Thumbtack by bizell May 27, 2008