Troll - What does troll mean?

Troll is slang for "A person who posts offensive comments." See an example of how people use it.
A troll is a person who posts offensive comments to get a reaction. Trolls often live in forums and online chat sessions but may appear wherever there are Internet users.

Editor's Column: Don't. Feed. The. Trolls.

What is Trolling?

I'm not a troll—why does everyone on the Internet keep calling me one?

What is the meaning of troll someone? - Question about English

Trolls of Norway—Facts and Fiction - Owlcation

How to Deal Effectively With Online Trolls - Douglas magazine

Trolls – the mythical Norwegian creatures

Have You Hugged a Troll Doll Lately? - The Strong National Museum

The Myth and Mystery behind Norwegian Trolls

Norwegian Trolls: An Introduction To Trolls From Norway

The Mythology of Norwegian Trolls

The Now: What is Trolling?