A term used by gamers to describe something in-game as easy, but only when "cheese" (cheap tactics) is employed.
Gamer A: "Dude, Dark Link is impossible!" Gamber B: "From Twilight Princess? No way, dude. He's cheasy as hell. If you stand in the corner, he can't hit you and you can swing at him all day."
Gamer A: "Hey, you're right. This is cheasy!"