look up any word, like spook:
Someone who likes people with some extra weight. For example, girls with sexy muffin tops, large bosoms or bellies or nice fat juicy bottoms or thighs. Can also apply to people who like fat men. (The FA can be either male or female)

Usually abbreviated to FA.
Will you just look at that Fat Appreciator drooling over that girl's sexy muffin top and dimply thighs!
by muffin100 September 03, 2011