A fashion comany started by Guccio Gucci in the late 1800s in Italy. It is now an international fashion company and is the benchmark for high-end designer clothes. Their clothes are now designed by Tom Ford. They are the makers of many lines including fragrance, jewelry, and watches. Is most commonly known for their 'double G' logo. Recently, because gucci clothing is of such high quality a bunch of ghetto idiots decided to make a term out of this prestigious name meaning cool or flashy.
Proper way: That gucci coat is blingin!!!
Ghetto (improper) way: Yo that caddy is strait up gucci!