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1 definition by
mateeeee.
fsn
acrynom for
Fat Slag
Nan
.
someone's
nan
who is fat, and was a slag in her youth.
Dave: Did you hear about
Jonny's
nan
the other night
?
Bill: Yeah, shes such a fsn!
by
mateeeee.
July 6, 2009
Flag
Get the
fsn
mug.