troll
Looks like
A monster from Scandinavian folk tales?
Actually
Someone who says things on purpose to provoke people and get a reaction, especially online
Origin
It comes from fishing: trolling means dragging bait behind a boat to see what bites. By 1992, people online were "trolling for newbies": posting a slightly wrong myth to see who bites.
Examples
- Ignore him. He's just trolling.
- Some troll left a nasty comment under my cooking video.
- Are you trolling me, or do you really like pineapple on pizza?