Watch-breaker 

An epic high-five that is so incredibly tremendous that it results in the buckle of the receiver's watch breaking open, leaving the watch limp on the wrist of the receiver.

Person A: Haha, good one! Up top!
Person B: Ya!
*high-five* (watch breaks)
Person A: Oh man, person B! What an amazing high five!
Person B: Ya, what a watch-breaker!

Watch-breaker by Hariklia and Blank September 12, 2009

Watchbreaker 

The motion of slapping ones hand against the opposite wrist. An action commonly seen amongst handicapped people.

Ted: Wow look at that guy on that yellow bus slapping his own wrist.

Bert: Yeah, he's a real watchbreaker! Still, at least he's not licking the windows.

Watchbreaker by theredfraggle April 6, 2008