The phrase "ants in one's pants" means restlessness or a strong desire to move or do something active. It is commonly used to describe hyperactive children or someone who is anxious or impatient. Some similar phrases that convey the same meaning are "itchy feet," "restless leg syndrome," "fidgety," "squirming," and "squirminess." Other expressions that describe restlessness or a strong urge to do something include "eager beaver," "go-getter," "energizer bunny," "fireball," and "live wire." In any case, all these synonyms describe the same type of behavior, which is characterized by constant motion and activity.
