YMMD

YMMD

An initialism of "you made my day," said when something someone did or said made one particularly happy or appreciative. The abbreviation is only used in writing. Thanks for the kind words, star_fish1978, YMMD. A: "The flowers you had delivered to my office are gorgeous. YMMD, darling." B: "You're welcome, my love. Glad you liked them."
Farlex Dictionary of Idioms.

You made my day

and YMMD
sent. & comp. abb. Thanks, you made me happy today. You are very kind. YMMD.
See also: made

YMMD

verb
See You made my day
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • have (something) made
  • have it made
  • have made
  • make it (to something or some place)
  • make it some place
  • make it to
  • be made for (someone or something)
  • made for
  • be made that way
  • make (out) after (someone or something)