know a thing or two

know a thing or two

To be knowledgeable about something. The phrase is usually used to indicate that one knows more about something than someone thinks. Hey, I know a thing or two about art—I was an art history major in college, you know!
See also: know, thing, two
Farlex Dictionary of Idioms.

know a thing or two

(about someone or something) Go to a thing or two (about someone or something).
See also: know, thing, two
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

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
Farlex Partner Idioms Dictionary

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
Farlex Partner Idioms Dictionary
See also:
  • all right
  • (one) never would have guessed
  • (you) wanna make something of it?
  • all for the best
  • a straw will show which way the wind blows
  • (someone or something) promises well
  • (I) wouldn't (do something) if I were you
  • a thing of the past
  • a/the feel of (something)
  • (have) got something going (with someone)