1) a huge big ass blow fly that when you squish it, it lays maggots everywhere

OR

2) a total dickwad (a person - can be male or female) that you simply just cant be bothered with
EXAMPLE:

1) "Oh, would you look at the size of that massive munty bum on that chicks head burrowing into her hair! Like eeew!?!"

OR

2) "Oh my god i totally can't believe how much of a munty bum she was towards him... if i was him i'd drop her, she's such a cow!"
by x_shagrat_nutsac_x September 07, 2006
6 Words related to munty bum

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