JTLYK

JTLYK

An initialism of "just to let you know," used primarily in text messages and online communications to inform someone of something. A: "I'm probably going to be about 30–40 minutes late, JTLYK." B: "OK, no problem." That picture you posted was from, like, five years ago JTLYK. Not really relevant anymore.
Farlex Dictionary of Idioms.
See also:
  • YMBJ
  • WTG
  • HBU
  • CTFO
  • DNW
  • DYK
  • FOAD
  • YKWIM
  • ianal
  • IANAS