Misrepresenting penis size, either by "packing" pants, or just by lying.
After he took his pants off, she knew she was the victim of cock fraud.
by Notcam March 14, 2003
The act of a man meeting girls on the internet and sending them photoshopped or otherwise altered pictures of their erect cock to impress the girl and make her want it.
Chris wanted to hook up with this girl so bad, he sent her a photoshopped picture of his cock but when he met the girl she laughed at him and said "Dude, you just committed Cock Fraud!"
by Yateball April 03, 2010