Half assed: A play on words regarding the word haphazard, which is what you get when someone incompetent attempts to do a careless job on something that could endanger people.
When you do something but don't give it your all, always resulting in whatever your doing turning out poorly or incorrectly. Doing things Half-Assed is more than just an act, it's a way of life for most Americans.
Mr.Schoene: Your a smart kid, I don't understand how you're failing so many classes. Jenny: It's because he does a Half-Assed job at everthing he does. Edgar: Well sorry if you don't like my way of life, after all , Half-Assed is the way i was raised.