Sup Muff? is a phrase that can be used in a variety of ways. It can be used to express pleasure, pain, confusion, elation, sadness, and a wide range of emotions. The phrase is typical among High School students in the south east Pennsylvania and Central New Jersey area.

Examples:

1) JMIRA: Sup Muff? What's up?
2) DR: Oh! Sup Muff! Oh! Shit!
3) SCHAFLE: SUP MUFF!!! FUCK
by Mike Canavan April 28, 2006
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