(Internet) A group of Internet trolls organized in order to interfere in political opinions and decision-making.

(folklore) In Scandinavian folklore, a witch's familiar made from hair, wood shavings, etc. that would suck milk from cows and steal cream from people's homes.

plural of troll cat

Alternative form of troll-my-dames

(Internet) a type of software which spreads misinformation

(patent law, derogatory) A person or company that enforces copyrights that it owns for purposes of generating income through strategic litigation, in a manner considered unduly aggressive or opportunistic.

(patent law, derogatory) An entity that attempts to register a trademark without intending to use it and who then threatens to sue others who use that mark.

Synonym of troll farm

plural of troll army

(Internet) An Internet troll who leaves deliberately offensive messages on online memorials to the deceased.