”thing or two”
bits of information or criticism about someone or something; a few facts about someone or something; some matters, facts or information
نکات یا اطلاعاتی در مورد چیزی
Example 1: I know a thing or two about Mary that would really shock you
Example 2: I’m having trouble paying attention; I have a thing or two on my mind
Example 3: She thinks she knows everything about raising children, but I could tell her a thing or two (= some information she does not know)
