Was on to a good thing - Idioms by The Free Dictionary
be on to a good thing (redirected from was on to a good thing)
be on to a good thing
slang To be in a favorable or enjoyable situation. I think I'm on to a good thing with my new job because I can work from home as much as I want. Your new boyfriend seems really sweet—I think you two are onto a good thing.
be on to a good thing have found a job or other situation that is pleasant, profitable, or easy. informal
be onto a good ˈthing be in a position or situation which brings you a lot of benefits: They’ve offered her a company car and a huge salary. She’s onto a good thing there.