A person who intentionally acts like an asshole on the internet for his/her own entertainment. Derived from descriptions of creatures of Scandinavian folklore, who would lead people to their death, insanity, or otherwise cause a total social breakdown.
A loser completely void of attention in the real world that he/she needs to be as obscene as possible on the internet to fill their desire for attention.
oh, no. not another troll making racist and homophobic posts. he probably will never get laid.