Any type of fast food. Fat is the long abbreviation of fast in "fast food" which makes it fat food... also the fact that fast food is usually extremely fattening, it works perfectly.
person 1- "I'm goin out, you want anything on my way back"
person 2- "Yeah get me some fat food, what you think!"
person 1- "K, what you want"
person 2- " BK nigga! or wendy's"
A fastfoodie is a person who has an ardent or refined interest in fast food, soft drinks, and dollar meals. A fastfoodie seeks predictable, familiar food experiences and convenience (there'd better be a drive-through); not flavor, nutrition, or curiosity.
I've never had Thai food, sushi, or hummus -- I'm a fastfoodie!
A person, or bot, that acts very much like the "Bing vs. other search engines" commercial. It would take him 3 sentences to answer a question, all of which would leave you even more confused. Remember to thrown in a ton of Karen O references as well.
Poster: Any have big titty links?
fatfoo: If you're looking for tits I should recommend maybe looking for that kind of thing on a search engine. I remember wishing one night Karen O would ask me this very thing.
Fat boy: Hey, I'm hungry. Want to get something to eat?
Skinny boy: Sure. Let's go to Chipotle.
Fat boy: Nah, I'm in the mood for McDonald's.
Skinny boy: But you eat so much fat food!! Didn't you just say you were trying to lose weight a minute ago?
Fat boy: Yeah, but I eat McDonald's almost every day?