1. A person that can handle multiple penises without being shaken.
2. A woman who has sex like she is getting paid.
3. A large woman whom tries really hard to please a man. Often she will accept uncomfortable positions and bizarre antics in stride. She treats the dick as though it is her only means of survival.
I love Jenny she is such a dick mule!
She's kinda ugly but MAN is she a dick mule.