An acronym for the phrase "Keep me updated".
Person 1: "We're thinking about having a party tonight. Not sure what time and place though"

Person 2: "Alright man, kmu on the details"
by JarrodJS December 31, 2011
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"Hey babe, we've been dating for a while and I think that you should kmu."
by Mami😍😘🔥 June 18, 2016
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