LMK Meaning: What Does LMK Mean? Useful Text Conversations 什么是LMK ？有用的文本对话 What does LMKmean? Learn the definition and how and when to use the internet slang word “LMK” with ESL picture and interesting texting conversations in English. LMK是什么意思?学习网络俚语“LMK”的定义，以...