Top definition
A name coined by comedian Adam Carolla to describe a male who cock blocks other males.
Benedict Cockblock is a derivative of the name Benedict Arnold and is close cousin of the Uncle Dude.

The name first appeared on the 2.27.2009 episode of Adam Carolla's podcast during a conversation with guest Bill Simmons.

link;
http://www.youtube.com/watch?v=Rb-6m8i5fkc

A Benedict Cockblock is guy who goes to a bachelor party and then tells his wife everything that happened.

or

A guy who tells his wife that a friend is cheating. Then the wife inevitably tells the friend's wife.
by dudeiwatedforyouman March 03, 2009
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