look up any word, like swag:
 
1.
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.
by Joel E. Rogers February 16, 2009

Words related to Thumb Duck

duck hand handshake shake thumb