Definitions by KingRolo
Mustard Sock
A troll who thinks he's actually good at something he's not, most likely a video game, but can refer to anything.
This guy is horrible with Pikachu, he's such a Mustard Sock.
Good thing this Mustard Sock has no idea how to play LeBlanc, that hero is imba.
Good thing this Mustard Sock has no idea how to play LeBlanc, that hero is imba.
Mustard Sock by KingRolo November 5, 2010