One whose diet mainly consist of chips, cakes, cookies, soft drinks, French fries, hamburgers, hot dogs, pizza and cold cereals; and just so happens to stay in good shape. (Brand usually does not matter when selecting foods.)
Rick is the ultimate snackatarian. His daily meals usually include cookies and Sprite for breakfast, pizza, coke and chips for lunch, and a bowl of Cap'n Crunch for dinner. Only a snackatarian can eat like that and never seem to gain weight.
Sarcastic. A term used exclusively by the kind of pathetic, trying too hard future soccer mamas to whose "jokes" friends can only respond with a blank stare and vague, twitchy attempt at a smile. Seriously, don't ever, ever use this word. It is strictly douchebags.
"Then the waitress at TGI Friday's was like, 'Do you want a doggy bag?' and I was like, 'No, I just want to throw out the other half of this pork chop!' I mean, seriously! She had it coming."