If you mean "trolling" on the internet, I don't think it's really considered slang, but that's not important right now. To troll is to basically mess with people on the Internet (irrelevant comments, unfunny jokes, etc.).
[Not sure exactly what it means, so anyone else that sees this feel free to add on]
Soup In Slang Means Ugly.
Cool itself, unless you are using it to mean mildly cold, is a slang word. Just because it is old slang doesn't mean that it is not still slang.
It's slang for "that's true"
What you on
Urban slang for a greeting or to indicate friendship.
That's a fictional creature. If you mean slang for someone misusing this site, not long.
You can be a great troll. How you do this is you need to sound professinol, like you know what you are talking about. Dont use slang like "dude. Yo. Homie. Or bro" all depending on what kind of a troll you are doing. Effects the way the troll plays out. Dont forget other friends in on the troll are also good to. So go out there and start trolling.
troll can mean an insult or a race of living things[trolls obviously]
If you mean slang as in internet slang, then it means "Certified Old Fart".
I smell a troll.
It's ruthless
troll troll troll troll troll troll troll troll
It means to hang around forums or chatrooms or other areas where you can comment, and to make really rude comments for no reason other than to try to start an argument. Trolls are just internet bullies.
The name Mikala does not have a specific meaning in a different language, as it is of Hawaiian origin.
To follow someone.or troll
Garrett mean in cockney slang
TROLL TROLL TROLL TROLL TROLL TROLL who knows what this stuff is :D