Where does come from?
Unicode approved growing heart emoji 💗 in 2010 as part of Unicode 6.0. Its release was by joined a whole host of heart-shape emoji: heart with arrow 💘, beating heart 💓, broken heart 💔, two hearts 💕, sparkling heart 💖, heart with ribbon 💝, heart decoration 💟, and revolving hearts 💞.
Most versions of the emoji, as shown in the screenshot from Emojipedia below, display a heart growing by at least two sizes, with the color of the hearts lightening at each higher level. Older versions actually animated a heart to grow larger.
The design of growing heart emoji 💗 reminds us of one notable instance from Dr. Suess’s 1957 children’s book (and 1966 animated film) How the Grinch Stole Christmas. Early on in the story, it’s implied that the main reason for the fictional Grinch’s misanthropy is that his heart is “two sizes too small.” At the story’s climax, the Grinch has an epiphany about humanity (and Christmas) that causes his shriveled heart to “[grow] three sizes that day.”
Who uses ?
The growing heart emoji 💗 is used whenever someone wants to show an outpouring of love, joy, pride, or any strong, positive emotion that would cause your heart to swell or grow. (If your heart literally swells or grows, please contact a doctor immediately).
— The Trevor Project (@TrevorProject) January 26, 2017
This is truly amazing. People of all backgrounds, marching on all 7 continents yesterday to support women's rights. 💗https://t.co/CZmneNErpS
— Jamie Hersch (@JamieHersch) January 22, 2017
— SBS PopAsia (@SBSPopAsia) January 19, 2017
— MAWRA HOCANE (@MawraHocane) November 15, 2016
It can also be used to evoke strong feelings of sadness or sympathy.
— Suzanne Lepage (@SuzanneLepage1) November 11, 2016
— People (@people) December 29, 2016