Top Definition
pnf
Pre-Natal Fingering:

When a man fingers his wife during pregnancy to determine whether the child has hair or not.
pnf
by garry gonorrheaaaaaa December 10, 2010
PNF
Poofy nipple factor. Enough said.
Man, did you see the size of that chick's nipples!? She had mad PNF!
by Kevin Raymond April 03, 2008
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