A Facebook Wingman helps his boy get some, facebook style. Usually this achieved by him reppin his bro or acting like a total dick to make him look better. Often lacks the suave of the traditional wingman but is usually just as effective. The Facebook Wingman is often at his best when intoxicated.
Nick: Check this out bro *Sends something obscene and dickish to an attractive girl*
Sid: Awesome bro she just sent me a winky face
Nick: Niiiiicce! I'm your Facebook Wingman