Definitions by Pneisme

Facebook Fap 

The act of masturbating to pictures of people that are posted on Facebook. This includes profile pictures, tags, videos and everything of that nature.

Jeff - "Yo, what'd you get up to last night?"
Scott - "Facebook fapped to Shauna...."
Jeff - "Dude, that's just plain wrong."

Facebook Fap by Pneisme September 30, 2010