First used by Caprice Crane in the novel "Stupid And Contagious" 2006.
Cinnamilk is the fictional, trademarked, product created by the character Brady in the novel "Stupid And Contagious" who sets off on a quest to bring his invention to the masses.

The remaining sugary deliciousness in your bowl of cereal after the cinnamon toast crunch is gone. Essentially a suspension of cinnamon milk, sugar and awesome.
Cinnamon-flavored milk. Cinnamilk. I am telling you. Next...Big...Thing.
by elharley January 26, 2008
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Cinnamilk was first discovered in Roman times. The Romans told tales of a mythological creature called the Cinnamon Bird which would cure whatever ailments travelers suffered from granted an offering of milk was provided. This mythological creature is believed to be the source and inspiration for cinnamilk. Roman lives were long and full due to their ability to harness cinnamon and it's health benefits. Some noted historians attribute health and vigor to their dominance over early Europe, and only recently has it been rediscovered how prolific use of cinnamilk products was throughout the Roman Empire. It was these legends and recent translations of historic scrolls thought to have been lost in the sacking of the Library at Alexandria that initially sparked a second look at cinnamon milk combinations as potential medicines.
How do I get the smell of a dead ostrich fetus out of my closet?
Pour some cinnamilk on it!
by Foh Clerica December 23, 2011
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the remaining sugary deliciousness in your bowl of cereal after the cinnamon toast crunch is gone. essentially a suspension of milk, sucrose, and awesome.
rather than pour more cereal into the bowl, he drank the cinnamilk
by dudes mcgee December 24, 2007
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The milk left in your bowl after eating Raisin Bran Crunch topped with cinnamon & sugar, or in most cases, Cinnamon Toast Crunch
I had to eat 2 bowls to make some of that BoMBDiGGiTy Cinnamilk
by Cee-DuBsKiEz February 24, 2016
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