1. phrasal verb If someone or something tees you off, they make you angry or annoyed. [mainly US, informal] [V n P] ⇒ Something the boy said to him teed him off. [V P n] ⇒ That really teed off the old boy. 2. phrasal verb → tee In golf, when you tee off, you hit the ball from a tee at the start of a hole. [V P] ⇒ In a few hours' time most of the world's top golfers tee off in the U.S. Masters.
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