1. a person who fishes by trolling (dragging bait or lures behind a moving boat)
2. a boat used for trolling
3. a person who deliberately posts provocative content online to upset others
Usage: internet slang

Examples

• The experienced troller caught three salmon before noon.
• We hired a charter troller for our fishing expedition.
• The commercial troller returned to port with a full catch.
• Their new troller is equipped with the latest fish-finding technology.
• The forum moderator banned the persistent troller.
• Don’t feed the troller by responding to inflammatory posts.