1. Acts committed by an asshat or asshats. 2. Engagement in an activity normally reserved for asshats.

Asshattery;

1. The act of acting similar to or completely like an asshat.

2. Similar to or completely like "foolishness".

The activities which lead one to become called an asshat.

Asshattery;

1. The act of displaying properties or characteristics of an asshat. This includes but is not limited to wearing your ass for a hat or saying/commiting an act that causes the audience in presence to become dumber.

2. The art of becoming or practicing flagrantly being an asshat.

A colorful way to describe the boorish and often taxing antics of a foolish and uninformed individual; an act or series of acts committed by an asshat.

a place where asshats are created, incubated, or otherwise come into being

Asshattery is when somebody is being an asshat and subjecting you to the effects of their condition. Also, something that an asshat would do.