Verb: The act of being asshole
A cop has a bad day and pulls you over, and acts like asshole to be an asshole; then gives you a ticket.
*Kids are playing with pool noodles in a Walmart*
Sgt. Hardass: "Are you going to buy those."
Kid #1: "*lies* Yes sir we are."
*Sgt. Hardass walks away*
Kid #2: *whispers* "Okay Sgt. Hardass."
Kid #3: *Yeah! I know!"
He Sgt. Hardassed to the store one day.