In slang, a troll is a person who posts deliberately offensive or provocative messages online (such as in social media, a newsgroup, a forum, a chat room, an online video game) or who performs similar behaviors in real life. The methods and motivations of trolls can range from benign to sadistic. These messages can be inflammatory, insincere, digressive, extraneous, or off-topic, and may have the intent of provoking others into displaying emotional responses, or manipulating others' perc In t...