The bloop is the default in-app notification from Grindr, the location-based dating app launched in 2009 and widely used by gay, bi and queer men. Because the sound is so closely tied to incoming messages and meetups, it escaped the app and became shorthand for dating chaos in memes, TikToks and reaction videos. Creators use it to signal thirst, a risky DM or a surprise match without any explanation. Its meaning is instantly understood in LGBTQ dating humor, which keeps it in rotation years after it first appeared.