When you lose your erection in the middle of sexual intercourse.
Girl: What happened?? I was about to come!
Guy: Sorry, I had erectile malfunction.
Girl: I told you not to drink so much.
by naknumm August 31, 2007
Top Definition
When you get horny and fuck an ugly chick
Person #1 : Bro you fucked buck toothed becky. ERECTILE MALFUNCTION.
by R-o-o-p May 31, 2015
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