be/go/keep on at somebody(redirected from keep on at somebody)
be on at
1. To be televised at a particular time. In this usage, "be on at" is a set phrase. The movie is on at 8, so I'm going to start making the popcorn now.
2. To nag someone about something. In this usage, "at" is followed by a noun or pronoun. Ugh, my mom is on at me all the time about my grades, but I just have no interest in the classes I'm taking this semester.
See also: on
keep (going) on at someone or something
to continue to complain about or scold someone or a group. Don't keep going on at him. Give him the dickens and be done with it. Please don't keep on at the committee. They did the best they could.