In Internet slang, a troll (/ˈtroʊl/, /ˈtrɒl/) is a person who sows discord on the Internet by starting quarrels or upsetting people, by posting inflammatory,^[1] extraneous, or off-topic messages in an online community (such as a newsgroup, forum, chat room, or blog) with the intent of provoking readers into an emotional response^[2] or of otherwise disrupting normal, on-topic discussion,^[3] often for the troll's amusement.