A mungmaster is required to perform what is considered the most skillful, disgusting and deadly acts munging. To become a mung master one must have been directly involved in a mung baptism and have served aboard a mungtrain. Only a mungmaster can become a mungtrain driver.
This refers to a particular gentlemen who has a very active sex life ,other men may be jealous of how many women he picks up and he also may be the cause of chlamydia outbreaks in some city's or towns
Ughdude I'm so jealous of Mike he is such a minge master
Or
Dude I hooked up with 10 women this week I'm such a minge master