The Bad-Ass Muthah, or BAM, was the second (Or third. whatever.) ship to be used by Thee Pi Lourrd. He used it to track down Zaeed Massan'ee and Kwarsh during his quest for vengeance. In the course of his quest, the Hunter killed many aliens, and thus the use of this vehicle is banned on many alien worlds. The ship was sold to a collector of evil items for an ass-load of money, money that Kwarsh put to good use by buying a couple of space fleets and a lot of hookers.
The appearance seems to be a a normal pelican, but with, an ass and some bombs stacked on top, oh and they also look like giant ballsacks (ANAL DICK BOMB)