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2.
a person who enjoys going down on a women, normally female, though could also be male. created in the east end of london,as derogitory term for lesbians.

josh: Is that pip a lesbo
fabio: Nah she aint no muffin muncher
by Demon616 aka fabio May 18, 2006
 
1.
A person, male or female who goes down on a female, performing cunalingus.
josh: wow that pips' a proper lezbo
fabio: nah she aint no muffin muncher
by Demon616 aka fabio May 11, 2006