His teeth 'crunched' means

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Class 6 English: Unseen Passages Type I Passage 6 — practice the complete quiz, review flashcards, or try a random question.

A big alligator floated in the greenish water of a canal in Florida. Only its bulging eyes and bumpy nostrils stuck up above the surface. Under the water the alligator's stubby legs paddled slowly. Its long, powerful tail swished gently back and forth, pushing the ten-foot (3m) gator silently forward. Then with a burst of power, the gator rose up in the water. Its tail whipped hard to the right. This threw its body into a curve and made a big wave in the water. The gator"s mouth opened wide as the wave swept an empty soft drink can into it. A. its teeth crunched down on the metal, the... Show more

His teeth 'crunched' means