Jump heads is a phrase that refers to the act of quickly changing the topic of conversation. Some synonyms for this phrase include hopscotch, leapfrog, skip, and bounce around. These words all convey the idea of jumping from one topic to another without any clear direction or focus. Other similar phrases include "change the subject," "divert the conversation," and "switch gears." It is common for people to jump heads when they want to avoid a particular topic or when they feel uncomfortable discussing a certain subject. This can be frustrating for others who want to stay on topic and have a productive conversation.