The act of an online gamer adding a fake clan tag in front of his name so other people will think he is more experienced than he actually is. Examples can typically be found on your average Call of Duty or Counter-Strike server.
John: Damn, that guy has like 6 clan tags! He must be awesome!
Rob: Nah, ignore him, he's just shamtagging.
Rob: Nah, ignore him, he's just shamtagging.
by Aj.Hatch February 24, 2010