"My weight went up and down like a yo-yo"

This quote by Judith Light is a metaphor for the ups and downs of life. It indicates that life can be unpredictable and that one's situations can change rapidly and dramatically. The expression "up and down like a yo-yo" is a reference to the toy, which is a stringed object that is wound around a spindle and then released, triggering it to move up and down in a repetitive motion. This metaphor is used to explain the unforeseeable nature of life, where one's circumstances can alter quickly and considerably. It is a pointer that life has plenty of low and high, which one ought to be gotten ready for the unanticipated. The quote also serves as a reminder to stay durable and to keep going, no matter how challenging life may appear.