Where does come from?
The slice of pizza emoji was launched in 2010 under Unicode 6.0. Officially called slice of pizza, the emoji popularly goes by the pepperoni pizza and pizza emoji. Google, Samsung, and WhatsApp notably include black olives on their slices.
Who uses ?
The slice of pizza emoji is used in text messages and social media that relate to food or eating. It can describe (or substitute) for when someone wants to eat pizza as well of course (e.g., I'm in the mood for 🍕 tonight!).
The slice of pizza emoji isn't restricted to pizza, as it can be used to discuss food in general, going out to a restaurant, or ordering food in. The emoji can be used with other food emojis to convey eating and dining, especially when craving an unhealthy meal (e.g., I can't wait to chow down after work 🍕🍔🌮).
It can also be used as a symbol to represent Italy as a whole or its culinary culture (e.g., You know you're Italian when...🍕🇮🇹😉).
On Snapchat, the slice of pizza emoji is used as a customized verification symbol for three celebrity accounts, including model Chrissy Teigen, model Bella Hadid, and DJ Martin Garrix. Use of the slice of pizza emoji, here and in other social-media account handles, is apparently whimsical and stylistic, playing on associations of people's general love of the food.
@itsgwynethxxx, December, 2017
🍕, Netflix 🎥 and my new plaid blanket 😂 with a glass of wine 🍷
@MsTia81, December, 2017
Have a Happy New Year and I hope to see you soon 🥃🍕🍰🌮💥💃
@lOsTaNdObScUrEd, December, 2017