When someone does and or says something that is either stupid, extremely funny, or you just feel like messing with them, you call them a nafer.
"I fell down the stairs and then ran into the wall."
"You're such a nafer!"

"I thought we were going to the movies tonight."
"No, that's what we were going to do tomorrow you nafer!"
by Cassifrass January 24, 2007
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the total opposite of wafer (def. 4)
me and ma nafers were chillin last night
by donovan and ashley December 19, 2003
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To ejaculate into another mans rectum.
Jeff: Bro, I just pulled the nastiest nafer.

Joe: That's fuckin disgusting!
by Capn Stoner June 21, 2011
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Someone who attempts to eat/bite off their own testicles / nuts. (Not the penis)
Jimmy: "My cousin is a ball nafer!"
Glen: "Are you for real?
Jimmy: "Yeah, no joke.. saw it with my own eyes"
Glen: "He must have been very horny to try something like that"
Jimmy: "He wasn't horny, he was really mad..."
Glen: "........"
Jimmy: "......."
Glen: "What the fuck?"
by SalsaDaddy April 9, 2018
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