be off

[be off] {v. phr.} 1. {v.} To be in error; miscalculate.

The estimator was off by at least 35% on the value of the house.

2. {v.} To leave.

Jack ate his supper in a hurry and was off without saying goodbye.

3. {adj.} Cancelled; terminated.

The weather was so bad that we were told that the trip was off.

4. {adj.} Crazy.

I'm sure Aunt Mathilda is a bit off; no one in her right mind would say such things.

5. {adj.} Free from work; having vacation time.

Although we were off for the rest of the day, we couldn't go to the beach because it started to rain.