A Facebook friend that gives up their 'likes' almost indiscriminately. Typically they will 'like' almost any post you make, regardless of how mundane or 'unlikeworthy' it actually was.
Steve: "Hey man check it out, Laura 'liked' my status from last night about me coming in 17th place in that bowling competition! I think she wants the D."
Drunk 1: "I am gonna drink more tonight than you ever could.. I bet you $1000 I can bong 3 cases of beer and slam 30 shots!"
Drunk 2: "The night is young...come on and bring it, don't sing it."