(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

Resembling a troll.

A crab of the Lithodes maja species

(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.

(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.

(Internet) a type of software which spreads misinformation

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

plural of troll army