It means that you are Gucci but, you are wanting to look even better.
I am going to the gym but, need to look even more guccier.
To be more gucci than something else.
Cunt #1: Bro I this ting I have is so Gucci
Cunt #2: Oh yeah? well dis ting I have is guccier than yours.
4👍 2👎
more gucci than everything else
person 1: my computer is very high tech!
person 2: nah, mine's guccier than yours will ever be.
person 1: i guess you're right