hoc-block 

Douchebags who obstruct the view of a hockey game by moving around and getting out of their seats without waiting for the whistle. Most hoc-blocks include first time hockey spectators, drunk assholes, and families with small children (which are the only acceptable hoc-blocks).

"Dude these hoc-blocks need to sit the fuck down, I can't see the game!"

hoc-block by riaaa17 February 1, 2010

HOC blocker 

A driver that insists on driving slower than normal freeway traffic in the high occupancy/carpool lane, thus slowing all cars behind them.

That HOC blocker up there has been doing 63 the whole way from the 110 to the 22!

HOC blocker by Deebeedub November 11, 2017