Meaning
The number 100 in bold red, underlined twice, like a perfect score marked on a test. It means total agreement or perfection: “absolutely,” “so true,” “keep it real,” or “nailed it.”
Use it to back someone up or praise flawless work: “Your speech said exactly what we were all thinking 💯” It is emphatic, so it fits enthusiastic agreement better than a thoughtful reply. Sent after every message, it can start to feel like empty hype, and it may confuse people who read it as an actual number or score.