Top definition
1)noun
2)P.E.F.N.A.R Penis Erection For No Apparent Reason
3)When out of nowhere, in unsuspecting situations, the penis suddenly becomes erect, causing great embarassment if not dealt with immediately
"I was sitting in church, next to my grandparents, and i totally got a pefnar!"
by sean September 28, 2003
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2
Penis Erection For No Apparent Reason
"Dude, I was sitting in English class and I got a pefnar."
"There aren't any hot chicks in my Spanish class, but I had a pefnar today."
by Ruben Mothballs January 25, 2003
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