Top Definition
When you meet someone new and spend a short time with them, whom you share an amazingly strong attraction with, even though it goes nowhere. Craigslist "Missed connections" section is full of folks who had micro-affairs.
I had a micro-affair with the new clerk at Lowe's while she helped me find an item. She's married, I have a girl friend, but we both truly enjoyed each other's company for those brief 5 minutes.
by chromerzoner May 14, 2013

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