Urban Dictionary troll 

A person who goes on Urban Dictionary, and makes definitions of subjects with the sole intention of flaming/insulting the matter. UD trolls usually use leet and bad grammar.

Person 1: "Listen to this definition of emo:
>fucktards who only cut demselves, also fugly and tihnk tht the world is against dem !1! lol<"
Person 2: "Must be an Urban Dictionary troll."

Urban Dictionary troll by Romance's Bad November 30, 2009

smoker troll 

A female in her late 30's to early 40's that has smoked since she was a teenager. Characteristics will very, but will likely include wrinkles, dull or gray hair, sunken in eyes, and pointy ears.

All off those death wands have turned her into a smoker troll.

smoker troll by Joe January 2, 2005

Hater Troll 

May also be written as one word, "Hatertroll".

When this expression is broken down by its compound root-words,

Troll meaning an individual or bitch who:
"posts a deliberately provocative message to a newsgroup or message board with the intention of causing maximum disruption and argument"

(Source: UrbanDictionary's definition of "troll").

& Hater meaning an individual or bitch who:

radiates negative feelings, emotions, and energy towards those who have found a person/place/thing that stimulates positive feelings, emotions, and energy,

it can be deduced that a "Hater Troll", in simplest terms, is a guiltless, shit talking, drama starting, rumor spreading, instigator of the worst and lowest breed.

That bitch spreads so much shit behind closed doors, she'll never stick to her guns when confronted. She's totes a hater troll.

Hater Troll by JRLovers November 17, 2010

tough troll 

an online troll who can hold his own in the event that a blogger or fellow thread-participant should physically challenge him in a real-life, face-to-face situation

Spencer is one tough troll.

tough troll by meeeeeeeeee333 May 12, 2010

reality troll

A person who trolls others, only in person. It could be over text or during conversation.

The reality troll wouldn't stop making black jokes in downtown chicago.

reality troll by HoRNYMExiiCANNN October 22, 2010

Posi-Troll 

This concept of a Troll generally only applies to forum boards.

Essentially it is a person who decides to Troll, but with abnormal intentions of only posting to help. Thus, they are almost complete opposites of Trolls.

This person will post anywhere in the Forum as many times as they think they need to get their opinion/point across. They tend to have 10x the post count of normal active forumers.

Most of them become Mods, well known through out the community, and are most definitely never banned.

- Xfactor56: Hey guess my post count now!!

- FireofJustice: Like dude I dunno or care.

- Xfactor56: Wellzz it's at 4042 now.

- FireofJustice: How? Was just 390 last week.

- Xfactor56: I just like posting and helping out.

- FireofJustice: W/e ur such a Posi-Troll...

- Xfactor56: ...... >.>

Posi-Troll by TheRealVastoLorde November 18, 2011

Closet Troll 

A person who seems like a nice, quiet person, but is really a troll when online. They act sweet and innocent in person, but their secret hobby is trolling.

Hey man, did you know Suzy was such a closet troll? Yeah, she seems so nice and quiet at school, but she totally trolls online.

Wow, you're so nice around people, but I've seen some of your comments. You're such a closet troll!

Closet Troll by Daniellescookie November 27, 2011