Internet troll, a person who posts messages that create controversy without adding content to the discussion, often intentionally.
Troll Gas Platform, one of the greatest engineering projects in history. Built by Norske Shell.
Three Dead Trolls in a Baggie, a Canadian band known for songs like "The Toronto Song" or "The War of 1812."
Trolling can mean walking. This is more or less basic slang now (from stroll), but it used to be polari.
Troll, Caltech slang for a student who studies hard. Also used as a verb to troll which means to study.
Additionally:
Residents of Michigan's Upper Peninsula frequently refer to residents of the state's Lower Peninsula as "trolls", making joking reference to the fact that all Lower Peninsula residents live "under a bridge" (i.e., to the south of the Mackinac Bridge that connects the state's two parts).
In Middle English the word troll (derived from Frenchtrou, or 'hole') was used with the meaning 'hole', especially to designate wounds by sword or knife, comparable to touché (literally 'touched') to say 'you are pierced'; with this meaning it was used in many translations of ancient texts into English, still available; later this term was derogatively applied to those women who followed soldiers with the purpose of prostitution; these meanings are now obsolete.
