Posted in Internet Slang, Schools & Education YCBS stands for You Can’t Be Serious YCBS stands for Yen-Li Chen Ballet School (Chandler, AZ) YCBS Share Pinterest Tweet Whatsapp Post navigation YCCYCBR Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.