v. to prevent ones friend from engaging in sexual activities by use of electronic means ie. facebook, myspace, AIM, YIM, Email, MSN
Random guy :"Broseph, what the shit. Why did you post that shit on facebook, you're totally e-cock blocking"
Javier "Yo man i totally just played tonsil hockey with this chick"
Dustin "haha dude im so gunna post that shit on facebook"
Javier "dude you are such a douche for e-cock blocking me"