Top Definition
The scabs and patches of dead skin resembling carpet burns that appear on your penis after excessive wanking.
Guy 1- "Dude, yesterday I tried showering, but the soap stung my doodle so much."

Guy 2- "Oh yeah? Weird... why is that?"

Guy 1- "I got bored over the weekend and got fap burn after jerking off so much.

Guy 2- "Too much info there, buddy.."
by Cinanymous September 21, 2010
The term used when an excessive masturbator whom knows no bounds creates so much friction between his hand and his member that his palm burns.
John: Oww, my hand still hurts from yesterday..
Bill: What happened?
John: I got fapburn..
Bill: You should probably masturbate slower, or even better, less.
by Fantastical Fapperisms November 20, 2009

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