"Pushed one's buttons" is a phrase often used to describe when someone has upset or irritated another person. However, there are other expressions that can convey a similar meaning. For instance, "got on someone's nerves" or "rubbed someone the wrong way" can also convey annoyance. "Pushed one's limits" can be used to indicate when someone has gone too far, and "touched a nerve" can be used to show when someone has hit on a sensitive topic. Other synonyms include "triggered", "exasperated", and "provoked" depending on the level of irritation or anger caused. It is important to choose the right synonym to express exactly how you feel and convey your message accurately.