The phrases come from real aircraft safety systems designed to warn pilots during dangerous flight conditions. Bank angle is a ground proximity warning for excessive roll, while climb instructions are issued by collision avoidance systems telling the crew to gain altitude immediately. Short recordings and recreations of these callouts have circulated in aviation and flight simulator communities online, where players recognise them from virtual cockpits. Edited together, the two alerts became a compact meme sound for any moment that feels like a vehicle, game or plan is losing control fast.