Meaning
A realistic red human heart with its arteries and veins, unlike the stylised ❤️. Literally it is the organ itself.
It is used in medicine, cardiology, health checkups and fitness, and by people who want a more raw or intense way to say love. Some use it for a pounding heart from fear or excitement. Pair with 🩺 or 💓. Example: “Booked my yearly heart checkup, staying healthy 🫀”.