Pre-Natal Fingering:

When a man fingers his wife during pregnancy to determine whether the child has hair or not.
by garry gonorrheaaaaaa December 10, 2010
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Post-Nut-Face; The face, often one of embarrassment or shame, after nutting or orgasming at the hand of another.
“Your PNF is so bad right now”

“I had a mad PNF after nutting yesterday”
by Jamesjgdog May 10, 2018
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