The abbreviation "hbu" stands for "how about you?" It is commonly used in informal text messaging or online communication to ask someone about their situation, feelings, or thoughts after sharing your own. It invites the other person to share their perspective or respond to a question.
The term "hbu" is a modern colloquial abbreviation derived from the phrase "how about you?" It has emerged with the rise of texting and online communication, gaining popularity in the early 2000s as shorthand used in casual conversations.