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1.
A very old man with a grey beard and grey hair
Often quite filthy
Comes from the term for santa old st filth
Oh my god fuck me in the poontang its Old St Filth
by grant yon wei astal September 09, 2007
 
2.
a rather old man with a long grey beard and grey hair
often quite filthy
come from the term for santa claus old st nick
oh my god look its old st filth
by grant yon wei astal September 09, 2007