Australian slang, "BEAUTY ONE" is a compliment spoken to express one's approval, usually at high volume in response to being told something awesome by one's m8.
Mate one: "I just cucked Mr. Winkle. His Mrs. fapped me sausage at smoko behind the Tuck Shop, I'm red-raw mate."
Mate two: "Beauty one fella."
Mate two: "Beauty one fella."
by AndyWinWin October 28, 2018