well wiki..(googlectual cap ON!) says the following are all meanings of "chaser"...
A chaser can be: * Somebody who chases somebody
* A player in the fictional Harry Potter sport Quidditch
* Toyota Chaser, a car
* The Chaser, an Australian comedy group
* Chaser (video game)
* Captain Chaser, the English localized name of the One Piece manga series character Smoker.
* A piece of music played or an inferior vaudeville act or motion picture presented to induce an audience to leave
* Someone that follows logs out of the forest in order to signal a yarder engineer to stop them if they become fouled -- also called a frogger
* A horse trained for steeple-chasing
* A ram that has only one testicle * A type of dragonfly
* A tool used for cutting the threads of screws
* One of the edge-wheels which revolves in a trough, to grind substances to powder
Shipping * In the form bow chaser or stern chaser, naval cannons pointing forward or aft and used in ship chases
* A ship which chases another
* A small, light, usually single-seated aeroplane of great speed and climbing power, used in repelling hostile aircraft
Slang * Someone who is not a bear, chubby, or otter (slim, hairy gay man), but is sexually or romantically attracted to them * One who chases women, a woman-chaser
* (1990s) A frequent user of crack-cocaine
* A prison guard
* A usually either a non or lesser alcoholic drink consumed immediately after drinking a potent liquor, to dull the harsh taste of alcohol
As you can see, there are so many wonderful options to choose from! I've highlighted my favourites
I always thought it was a reference to 'ambulance chaser' - a satirical swipe at the journalistic style of the daily terror et al. but i'm just pulling that out of my arse and have no idea really
i kinda like the 'ram with one testicle' meaning though
