Top Definition
the act of gettin high off some bomb ass weed... wether it be dro or haze... Actually smoking...
im piffin it when i get off work.
by Queen Lala December 10, 2006

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to perform intercourse with an armpit. i.e. pit-fucking
dude, my pit's sore from all the piffin' last night!
by Burrito BB October 26, 2007

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