[go off] vi (1579) 1: explode
2: to burst forth or break out suddenly or noisily
3: to go forth, out, or away: leave
4: to undergo decline or deterioration
5: to follow the expected or desired course: proceed "the party went off well"
6: to make a characteristic noise: sound -- go off the deep end 1: to enter recklessly on a course
2: to become very much excited