pull up on

From pull up +‎ on. The "call out"/"criticise" sense is derived from the analogy of cops (police) pulling up alongside of one's vehicle in order to confront or arrest them for wrongdoing.

pull up on (third-person singular simple present pulls up on, present participle pulling up on, simple past and past participle pulled up on)

1. (idiomatic, slang) To come to, visit.

   Do you mind if I pull up on you in about half an hour?

2. (idiomatic, slang) To call out or criticise someone for something they have done wrong.