A way of saying you spent a long time at the bar. A reference to the neon beer signs that are in bars.
Doug: "Hey man what did you do last night?"

Fred: "I spent all my money and now all I have left is a hangover and this neon tan."
by tyhillman July 7, 2010
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A badass sunburn to the point of being a bright red....
fall asleep at the beach on a sunny day for like 7 hours....by that point you should be sporting a neon tan.
by Brett Davis August 17, 2007
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