A person who is good at a single aspect of a something, but believes that they are good at all aspects.
Roach: Mtz you shit bastard, put the sniper down we are playing Shipment you dumb mother fucking inbred piece of shit.
Mtz: stfu roach i cnt yoos ne ova gnz am so skild lolz
Roach: You wanna go MKB after your wraith bands Mtz pal.
Mtz: STFU I GOIN LIFESTEAL ON CLINKZ LOLZ TOTLI WASTIN G'S HURR HURR HURR
Everyone else: Mtz, just plug it you dumb waste of spunk.
"A'ight, so when's the next time you're coming back down to MTZ then?"