mule, n.Definitions

The Mule is the original hybrid vehicle

A Mule is the bastard child of a jackass.

A Mule is an animal that has no pride in ancestry and no hope of posterity.

The Mule is an animal possessed of the rare decency not to reproduce.

A Mule is to be approached the way a porcupine makes love: Slow 'n keerful.