An abbreviation that is widely used in texting and chat, and on Facebook, Twitter and elsewhere on the internet, but what does LMK mean in slang?
Most Common LMK Meaning
LMK stands for Let Me Know.
LMK is used to ask someone to respond to your message or question.
Does anyone have plans for Saturday night? LMK.
Alternative LMK Meanings
What Does LMK Mean?
Let Me Know.