Much like spam, it is an often unwanted and nearly meaningless act except it is on facebook.
A like spammer uses the Facebook Like Button on a person unrelentingly on all of their pictures, comments, notes and whatever other crap they have posted on
fbook.
The act has no monetary gain and only exhibits the like spammers true lack of a life and friends. It is done for
teh lulz and the common response is
ffffuuuu.
Hector: Dude I totally hate spam on
fbook
Storian: Haha, I'm gonna like spam Leo!
Hector: Yes! Make sure to get all his emo statuses and stupid
FarmVille posts!!! FTW ZOMG