troll in Turkish

(originally, Scandinavian, _, mythology, now, also, European folklore) a giant supernatural being, especially a grotesque humanoid creature living in caves or hills or under bridges. [from early 17th c.]

(by extension, originally, Internet slang) A person who makes or posts inflammatory or insincere statements in an attempt to lure others into combative argument for purposes of personal entertainment or to manipulate their perception, especially in an online community or discussion. [from late 20th c.]

(by extension, politics) A person who sows discord, or spreads misinformation or propaganda, in order to promote an agenda as part of an organized political campaign.

(figurative, originally, Internet slang) To post irrelevant or inflammatory statements in an online discussion in an attempt to start a heated argument or to derail a conversation, either for one's personal entertainment or as part of an organized political campaign. [from late 20th c.]