fat finger dialing 

A telephone scam in which a company sets up a toll number that is one digit different than a popular number, so that the company earns money when customers accidentally mis-dial the legitimate number; mis-dialing a phone number in this manner.

"Shit, man -- I dialed 1-800-COILECT last night and totally got scammed."
"Dude, you need to stop fat finger dialing."

fat finger dialing by thedruproject January 27, 2007