GO OFF

{v.} 1. To leave; to depart. * /Helen's mother told her not to go off without telling her./ 2a. To be fired; explode. * /The firecracker went off and scared Jack's dog./ 2b. To begin to ring or buzz. * /The alarm clock went off at six o'clock and woke Father./ 3. To happen. * /The party went off without any trouble./ * /The parade went off without rain./