Top Definition
The use of innuendo, such as double entendres or euphemisms, in conversation across the instant messaging client MSN Messenger (now known as Windows Live Messenger) or similar. It may or may not include use of default or custom emoticons.
David: "I was talking to Emma online yesterday - I think I'm in."
Daniel: "Why do you say that?"
David: "We were both dropping a lot of MSNuendo."
by hoever06 February 15, 2008
5 Words related to MSNuendo

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