Real Dictionary

fancy elaborate or expensive
If you describe something as fancy, you mean that it is special, unusual, or elaborate, for example because it has a lot of decoration.
If you describe something as fancy, you mean that it is very expensive or of very high quality, and you often dislike it because of this.

fancy in American English
imagination, now esp. light, playful, or whimsical imagination
noun: imagination or fantasy, esp. as exercised in a capricious manner

fancy in British English
adjective: not plain; ornamented or decorative
noun: a sudden capricious idea; whim

fancy wanting, liking, or thinking
countable noun: A fancy is a liking or desire for someone or something, especially one that does not last long.
verb: If you fancy someone, you feel attracted to them, especially in a sexual way.
verb: If you fancy something, you want to have it or to do it.
verb: If you fancy yourself as a particular kind of person or fancy yourself doing a particular thing, you like the idea of being that kind of person or doing that thing.