Someone who can't help themselves but to "like" everything that is going on in Facebook.
John is bitter and alone.
Geoff likes this!
John: Dude, what the hell?
Geoff: Sorry, man, I can't help it. I'm a compulsive liker.
The act of unclogging your bath tub with a wire coat hanger.
Quinn: Honey...the tub is clogged.
Ben: We'd better have a tubortion.