The Brotherhood of Daves

An instantaneous connection that all guys named "Dave" have amongst each other. It's a strong communal bond. A brotherhood.

Also known as "The International Brotherhood of Daves"

(two guys meeting for the first time)

Dave 1: Hey, my name's Dave.
Dave 2: Dude, the Brotherhood of Daves!
(high fives)
Dave 1: Haha yes!