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.
"sheeutt up urrr soo gaaay ewwww lolz"
"Wow. That comment was so horribly LANDMASTER. Next time try and post something creative and that isn't so cliche"