Definition: Lmk is a slang abbreviation for "let me know".
Use case: Lmk is commonly used in casual conversations, especially in text messages, to ask someone to inform or update you about something. For example, you can use it to ask a friend if they are coming to a party, or to ask a colleague if they have finished a task. It is a quick way to express your curiosity or interest in something without being too formal.
• "Hey, lmk if you're free to hang out later this afternoon."
• "LMK if you need a ride to the airport tomorrow."
• "Let me know if you're down to catch a movie this weekend, lmk what you think."
• "LMK if you're interested in checking out this new sushi place that just opened up."
• "LMK if you need me to pick up anything for the party on my way over."
• "Hey, lmk if you wanna hit up that new speakeasy downtown tonight."