The phrase "on blink" means something is malfunctioning or not working correctly. There are several synonyms that can be used to express the same idea, including "broken," "faulty," "defective," "out of order," "inoperable," "not functioning," or "not working." Each of these words conveys a sense of something not performing as it should be, whether it is a machine, device, or even a human body part. When something is on blink, it requires repair or replacement to get it back to its proper functioning state. It is important to identify and take action when something is on blink to avoid potential hazards or further damage.