ay yambanza
A sigh of relief, perhaps said slowly while one is releaving one's self in a water closet.
Rob: "Aaaaaaaaaaaaaaaay yambanza......"
Bob: "Dude are you OK?"
Rob: "You bet your bottom I am, I'm quite relieved!!"
Bob: "Dude are you OK?"
Rob: "You bet your bottom I am, I'm quite relieved!!"