Top Definition
a bit like bum fluff. as a women gets to a certain age she begins to grow a moustache - similar to an adolescent boy. this gives them the 'let themselves go' look.
1) oh my god, your mum has let herself go, is that mum fluff i see on her face?
2 you should shave that off mate. you look my nan, she has mum fluff too.
#mum fluff #bum fluff #moustache #facial hair #old #granny #mum
by paddy 12345 October 12, 2009
6 Words related to mum fluff
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