The order of french fries consisting of the remains of a once proud batch. This order has the short, burned, crisped-solid, or fingernail like french fries. Fast food workers often try to compensate for ass fries by sheer volume of fries. May lead to depression or recipient becoming punchy.
Ricky's cheerful attitude took a turn for the worse after seeing a box of ass fries next to his cheeseburger.