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The act of logging into an online role-playing environment with the express intention of annoying role playing geeks and possibly making them cry.
Robero the Valiant: Good day villager, perhaps you could direct us to the nearest Ale House?

Villager NPC: Sure, go right down this path...

Gandarb: I kill the villager, scalp him, and hand the bloody scalp to Robero.

Robero the Valiant: (out of character) Wat r u doing!?!1

Gandarb: What, that's what my character would do!

Robero the Valiant: (out of character) You're Troll Playing!
by Scanford February 13, 2011
Roleplaying for the sole purpose of trolling. One who trollplays would be known as a trollplayer.
A user named Albert_Wesker is posting on an Resident Evil board and insists that Leon should be killed off in the next game? He's definitely trollplaying.
by dahliahawthorne April 16, 2011