Flumzi Share definition Flag a gay person (male/female) that is fun, easy to be with and can have harmless fun with straight people. Roberto is also known as Flumzi! ( patented this word in funki Sushi) Flumzi by Geas June 1, 2011 0 0 Get merch Get the Flumzi mug. Buy Now — $32.95 See more merch