Meaning
A yellow smiley sliding downward into a puddle, its smile still in place while the bottom of the face turns to liquid. Literally it means melting, whether from heat or from feelings too big to handle.
People use it for quiet embarrassment, overwhelming cuteness, summer heat or a sarcastic “I’m totally fine” when things are falling apart. It pairs well with 🥵 on scorching days and 💀 for awkward moments. Example: “Just realised I sent that to the group chat 🫠”.