it's on me

it's on me

I will pay for some purchase. Hey, if you want to get a coffee too, it's on me. No, no, put your credit card away—it's on me.
See also: on
Farlex Dictionary of Idioms.

It's on me.

I will pay this bill. (Usually a bill for a meal or drinks. Compare this with This one's on me.) As the waiter set down the glasses, Fred said, "It's on me," and grabbed the check. John: Check, please. Bill: No, it's on me this time.
See also: on
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • it's all the same to me
  • be up to (one)
  • be up to somebody
  • cham
  • champers
  • the way the crow flies
  • it strikes me that
  • it's a wonder
  • it's a wonder...
  • scooch