Uptown is a word that doesn't need to be explained separately ... although it also has this meaning, you can look it up in Webster's dictionary (equivalent to Xinhua dictionary in the United States), which also has fashionable meaning. FUNK personally thinks it's funk (a kind of dance music, black music, you won't know until you look it up).

As for crazy and loony, I can only say that crazy is adj and loony is n, because Webster's dictionary says loony is synonymous with madness, and maybe loony has a stupid feeling. ...