Thumb Duck 

The act of ducking your thumb down just as you're about to shake someone's hand. If done properly, your hand will slide past theirs, and they'll be left awkwardly grabbing your wrist, looking very confused.

Did you see that? I just thumb ducked the crap out of that chump.

Thumb Duck by Joel E. Rogers February 16, 2009

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

thumbfucked 

To get a thumbs down vote on urban dictionary.

Someone just thumbfucked me on urban dictionary.

thumbfucked by jpg3 July 17, 2011

Thumbsucker

An adult who whines about very trivial things. Making them appear childish.

A woman sitting at a traffic light, behind a car displaying a non-Christian Evolve Fish emblem, yelled unchristian obscenities to the driver.
The passenger in the car next to her rolled down his window, and calmly asked? "Do you realize how childish your behaving?"
At this she screamed more angry obscenities.
The passenger calmly waited for her to calm down, and as if speaking to a child, said. "Where's your mommy? Thumbsucker."

Thumbsucker by Chat Noir May 24, 2008

thumbfuck 

to insert ones thumb into the anal or vaginal orfice.

i said "thumbfuck", you dumbfuck!

thumbfuck by dj jazzy jeff and the fresh prints January 21, 2004

thumbfucking my phone 

The hateful practice of text messaging.

I mean, I like the girl, but she's always got me thumbfucking my phone.

thumbfucking my phone by Jan Warren February 5, 2008

Thumbsucker

An immature person.

Donald Trump is a thumbsucker.

Thumbsucker by TRAVVIS December 29, 2017