Proof that you can get way too damn carried away with gamer slang. These are honestly just the basics - I've played too much Halo for my own good. Also, this website as a whole has a terrifying amount of detail about Halo...
On top of that, there are terms that you need to know for each and every map. Obviously you're not going to here these out in public, but it just goes to show how in depth the terminology can get for an individual game. Also, don't watch the whole thing, I'm just proving it exists.
So 20 or so terms for each map, times 20 maps, plus a ton more jargon, times an absurd amount of video and computer games, equals a great many terms that mean nothing outside of gaming.