Top Definition
That nagging cough you get that never gets too bad but also never goes away despite being perfectly healthy otherwise, taking tons of vitamins and trying all your natural home-remedies. A direct result of breathing chemicals (barium and aluminum) sprayed into the atmosphere by the government.
"Dang, I've been drinking tons of tea and using my neti pot but I still can't shake this chemtrail cough, must be from that grid they sprayed last week."
by peacechicken January 10, 2012

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