The phrasal verb "t off" has several synonyms that you can use to express the same meaning. One of the most popular options is "annoy," which means to irritate or bother someone. Another option is "provoke," which implies that you are intentionally trying to elicit a response from someone. "Aggravate" and "exasperate" are two other synonyms that mean to intensify someone's annoyance or frustration. If you want to relate the idea of jokingly mocking someone, "tease" and "taunt" could be the right words for you. No matter which synonym you choose, all of them convey the same fundamental idea of irritating or attacking someone.