Top Definition
The orgasm-like feeling one experiences while eating a food item containing the combination of large amounts of cinnamon and sugar, including but not limited to Cinnabons, and cinnamon toast crunch marshmallow bars.
Hayley: This cinnamon bar is SO GOOD.

Dylan: I know, right? I'm having a cinnagasm.
by Family Group 5 October 17, 2010

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