To be without creativity. To hold the power to create a truly epic game and fail on numerous levels. Also see: Sakurai, Nintendo
Was started on the Super Smash Bros Brawl Forums on GameFAQs and GameSpot due to the anguish of fans that at least 3 final smashes of characters were all landmasters. It is now used to describe a statement that is uncreative, cliche, or expected.
Ex. "lolololzurz theis iz a dumb topicz u phALEZ/10"
Reply post: "Wow. That comment was so horribly LANDMASTER. Next time try and post something creative and that isn't so cliche"