Parking-Brake

A boner that you get while sitting down that makes it rather difficult to stand up.

Awh man! I tried standing up to go to the bathroom second period, but my parking-brake was on.

by Theworddumpster November 18, 2009

put the parking brake up

Euphemism for "to take a dump".

I was initially only going to be gone for a minute, but once I was in the bathroom I realized I needed to put the parking brake up.

by birdlaunch7 April 5, 2009