1. A person or group of people that invites discord on the internet by starting arguments or posting inflammatory, extraneous, or off-topic messages in an online community with the deliberate intent of provoking readers into an emotional response or otherwise disrupting normal on-topic discussion.

Source: U.S. Cyberspace Solarium Commission, March 2020,

2. A person who seeks to sow discord, disrupt, or influence behavior on the internet by posting inflammatory content

Source: An Investigation into Foreign Entities Who Are Targeting Servicemembers and Veterans Online, Vietnam Veterans of America,