1. Someone who has more than the average teeth count (between 26 and 32 are the acceptable numbers).

2. Someone whose teeth are severely impacted to the point where closing their mouth causing them pain.

3. Someone whose grill(see def) is socially undesirable; if you were to kiss them or place you genitalia into the mouth, you may be injure your tongue, castrate your penis and/or clitoris.

4. Patrick Scott's wife; "Heather Scott".
Man, throw that crunch mouth bitch some rocks to chew on and watch her spit out gravel.
by P3 October 31, 2004
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When the roof of your mouth gets all torn up after eating Cap'n Crunch or some other rough food.
I get Cap'n Crunch mouth after eating 2 bowls of that friggin cereal!
by Carla Reyes December 31, 2008
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the post-eating phenomenon where one's mouth hurts and might bleed due to scraping of the sharp Captain Crunch cereal against the gums and roof of the mouth during mastication. The Cereal even after soaking in milk can stay sharp and lacerate gums if eaten hurriedly.
You need to watch out for Captain-Crunch mouth if you are engaging in oral sex and are at risk for STD infection.
by GDDPHD February 21, 2015
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When the roof of your mouth is shredded from eating food that is crispy or porous like some breakfast cereals.
I have Cap'n Crunch mouth from breakfast and the roof of my mouth needs time to recover.
by Bamafan1 October 12, 2011
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Crunch Mouth is an oral injury specifically associated with the aggressive consumption of Captain Crunch cereal.
Crunch Mouth; a small price to pay for dominating a bowl of the Captain's finest!
by @WallyGPX January 22, 2023
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