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LMK

/el-em-kay/ slang term
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Definition

Let Me Know.

Examples

"LMK if you're coming through tonight so I can make sure the door is unlocked."
"LMK what you think of the new song, I want your honest opinion."
"Can you pick me up? LMK if that works for you."
"Still deciding on the movie? LMK by 8pm so I can book tickets."

Origin

Acronym popularized on social media platforms.

Related Terms

No related terms available.

Is it offensive?

Generally not offensive, but context matters. Use appropriately based on your audience and setting.

For Parents/Teachers

This term is generally harmless but context matters. Encourage appropriate usage based on setting and audience.

Frequently Asked Questions

Let Me Know.
Generally not offensive, but context matters. Use appropriately based on your audience and setting.
Acronym popularized on social media platforms.
Last updated: October 2025