This emoji is a thought bubble, often used to indicate that someone is thinking or pondering a difficult question. Read more
It is a relatively popular emoji, with the majority of users being in the age range of 13-25. It is most commonly used on platforms such as Snapchat, Instagram, and Twitter, and is not considered to be a rude emoji.
This emoji was first introduced in 2010 as part of Unicode 6.0, and was designed to represent a thought bubble, which is a common symbol used in comics and cartoons to indicate that a character is thinking. It has since become a popular way to express one's thoughts or feelings on social media, and is often used to indicate that someone is pondering a difficult question or trying to come to a conclusion. It can also be used to indicate that someone is daydreaming or has an idea they want to share.