This is a red square, which generally represents a red color card. It is also called "Chinese Red". Red has the meaning of warmth, passion, unrestrainedness and atmosphere. In China, red also means celebration. Related emoji: 🍎🔴🟥🧧❤️
Your girlfriend has a bunch of lipsticks and keeps buying lipsticks. You are particularly puzzled, so you ask: "Aren't they all red 🟥 Why do I waste money to buy so many 🤔? "