G’Day Mate is the act of applying Australian Gold Sunscreen to one’s anus prior to Butthole Sunning. In case you’re wondering, like I was, Butthole Sunning is an actual thing. Apparently “absorbing sunlight through your anus is a great way to recharge your whole system”.
Chris: “Hey Sarah, it’s supposed to be 85 and sunny tomorrow....you know what that means!”
Sarah: “Sure do! It means you’re still worried about your melanoma coming back and you need me to give your asshole a G’Day Mate.”
Chris: *sad faced* “Yes.”