my friend almost suffocated because he couldn't stop to breathe while stuffing his mouth full of the shit. cinnamon toast crunch may even be considered better than sex. maybe...
1. A situation in which a person is to put as many pieces of Cinnamon Toast Crunch inside his/her nose or anus within the span of 45 seconds.
2. What people say as a witty substitute for "Cinnamon Challenge" in order to trick people or make them laugh.
Person 1: "25 likes and I'll do the Cinnamon ToastCrunch Challenge!"
Person 2: "What?"
Person 3: "I hope he tapes it."
When a male dips his balls in melted butter, then proceeds to roll them in cinnamon, then hits a girl in the face with them, the resulting impact should have a slightly crunchy sound.
Tom: Dude, what did you and Becky do last night?
Phil: We totally fucked, so for breakfast I gave her a little Cinnamon Toast Crunch!
Tom: Nice!