1. A character in the SNES game Earthbound. Later appeared in N64's Super Smash Bros, and Super Smash Bros. Melee, the sequel to the popular Gamecube game.
2. A good way to not be as funny, original, or clever as you might think. Many people will add "-ness" as a suffix to just about everything, to turn it into a noun. The most annoying of all uses is "coolness." While a select few may find this funny, almost everyone else agrees that it sucks.
1. When I play Super Smash Bros., I like to be Ness because he is one of the lesser known characters.
2. "Coolness." "Hotness." More like shut up, douche.