Someone who feels the need to correct every little grammer error that they see to the point where it's just irritating and unnecessary.
Person A: Yo, peeps wat's happeninz?
Grammer Troll: *copies the last person's entire post and rewrites it* Yo, people what's happening?
Grammer Troll: *copies the last person's entire post and rewrites it* Yo, people what's happening?
by Aldridge517 July 9, 2010
Get the Grammer Trollmug.