know a thing or two

know a thing or two

To be knowledgeable about something. Hey, I know a thing or two about art—I was an art history major in college, you know!
See also: know, thing, two

know a thing or two

(about someone or something) Go to a thing or two (about someone or something).
See also: know, thing, two

know a thing or two

be experienced or shrewd.
1993 Rolling Stone Andy Shernoff …knows a thing or two about great glam punk.
See also: know, thing, two

know a thing or two (about somebody/something)

(informal) know a lot about somebody/something from your own experience: After ten years as a teacher, I know a thing or two about how children learn.‘How much do you know about computers?’ ‘Oh, I know a thing or two.’
See also: know, thing, two