thumbjob 

Sucking someone's thumb, miming the action of oral sex.

"You gave him a thumbjob?!"
"He seemed to enjoy it!"

thumbjob by JonnyJJ December 14, 2008

thumb job 

When a chick rubs the area of a man's body where his ball sack connects to his penis with her thumb(s).

The prostitute will give thumb jobs for five dollars.

thumb job by Tom and Mike June 20, 2006

Thumbdobbin' 

to waste other people's time; indecisive; in the way, especially in heavy traffic conditions

As traffic became heavy, the other drivers honked at the man thumbdobbin' in the fast lane

Thumbdobbin' by KeishaLeighArt July 28, 2017