go off

[go off] {v.} 1. To leave; to depart.

Helen's mother told hernot to go off without telling her.

2a. To be fired; explode.

Thefirecracker went off and scared Jack's dog.

2b. To begin to ring orbuzz.

The alarm clock went off at six o'clock and woke Father.

3.To happen.

The party went off without any trouble.

The paradewent off without rain.