There are several synonyms for the phrase "ticks off" that can be used to express frustration, anger, or irritation. Some common alternatives include "annoys," "irks," "exasperates,", "grates on," "angers," "provokes," "offends," "aggravates," "bothers," "vexes," "disturbs," "displeases," and "infuriates." All of these words can be used to describe situations where someone is displeased or annoyed with a particular person, behavior, or situation. These synonyms can help to add variety and nuance to your writing, and can be particularly useful for expressing emotions in a more precise way.