-Made by popular by the Buffy the Vampire Slayer series to refer to the person who's assigned to watch over, guard, teach and train the vampire slayer.

-Every slayer has a watcher and if one dies before the slayer does, the watcher is replaced with another, no one knows exactly how many watchers were in the council as supposedly they all died just shortly before the series ended in a giant bomb explosion at their headquarters set up by crazy priest villian Caleb.

-A watcher trains the slayer to fight with hand to hand and long range weapons and aids her by telling her stuff about demons and vampires ie how to kill them.

-Tend to be British while oddly slayers seem to be of any race and origin.

-Most famous wacthers:
Giles (Buffy's watcher), Gwendolyn Post(Faith's crazy watcher that Angel had to kill), and Wesley Wyndham Price (Faith's last watcher who later joined the cast of the Angel series)

A girl/boy who watches someone who they are friends with become BEST friends with your best friend but you can't do anything about it.

The Watcher of the Teambang group is the weirdest, creepiest, oldest, dirtiest, smelliest, ugliest, and grossest member who usually sits in the corner masturbating to the human clump before him while simultaneously spewing shit, vomit, piss, and snot in every direction with the occasional blood splatter.