Beat Creep 

A Facebook user who creeps random people or friendly acquaintances and proceeds to beat off to their pictures.

Oh man, I met the hottest twins at the bar today! I'm gonna beat creep them tonight!

Beat Creep by strykerpua July 18, 2009

beat creeper 

beat creeper i.e; someone who steals beats from a producer for their own use.

Damn did you hear that new track by "G*****"?

Oh you mean that low class beat creeper who takes credit for beats that aren't his own?

beat creeper by bdubzy April 20, 2012