"On stick" is a phrase that refers to something being attached or mounted to a stick or pole. Some synonyms for this phrase include "on a skewer," "on a spit," "on a lance," "on a staff," and "on a rod." Each of these synonyms can be used in different contexts to describe a variety of objects or actions that involve this type of attachment. For example, "on a skewer" is often used to describe food items such as kebabs that are grilled or roasted while being skewered on a stick. "On a staff" can refer to objects such as flags or banners that are mounted on a long pole and used for displays or ceremonies.