troll

US /troʊl/
UK /troʊl/
"troll" picture
1.

a mythical, mischievous, or grotesque creature, often depicted as living in caves or under bridges

:
The children read a story about a friendly troll who lived in the forest.
According to folklore, trolls turn to stone in sunlight.
2.

a person who makes a deliberately offensive or provocative online post to upset someone or elicit an angry response

:
Don't feed the trolls; just ignore their hateful comments.
He was banned from the forum for being a persistent troll.
1.

to make a deliberately offensive or provocative online post with the aim of upsetting someone or eliciting an angry response from them

:
He likes to troll political forums with controversial opinions.
Some people just want to troll and cause trouble online.