The feeling you get for up to an hour after attempting the cinnamon challenge. Some signs of a cinnamon hangover include, but are not limited too: Extreme drowsiness, diarrhea, and wanting to cut off your own nose.
Cole: What happened to you two?
Wade: (passed out)
Tanner: We just tried the cinnamon challenge and now we have a huge cinnamon hangover. FML.
Cole: Only 1 tablespoon of cinnamon?....pussy.