v. phr. , informal To run smoothly and regularly like the workings of a clock; go smoothly and without difficulty; go on time or as planned. The car's motor went like clockwork after Bob fixed it. The birthday party went off like clockwork and everyone had a good time.
GO OFF LIKE CLOCKWORK
Meaning of GO OFF LIKE CLOCKWORK in English
American idioms English vocabulary. Английский словарь американских идиом. 2012