Look at what has already made it into the Urban Dictionary

[Cincinnatus]

1.  barrycade 

1. A barrier (usually temporary) that exists for no reason. 2. A barrier erected for political reasons.

"Dude, Obama barrycaded the park."

"Hey, let's put up some barrycades to keep those World War II veterans away from the open-air World War II Memorial in Washington, D.C., in order to try and score some cheap political points."

http://www.urbandictionary.com/define.php?term=barrycade&defid=7207841