Definitions by Frank Longbottom

Cockblock Tomahawk 

An object thrown with the intent of cockblocking a couple.

PJ: Did you hear about Jake and Meredith? She was giving him head in a movie theater and someone threw a cockblock tomahawk at them!
Amelia: Wow, that's embarrassing!

Cockblock Tomahawk by Frank Longbottom September 7, 2013