- (slang) snack food. Derived from the expression "to tuck in food" meaning "to eat up", "to guzzle".
- A curled position.
- to push in one material under another - as in "tuck in your shirt" or "I tucked in my shirt" etc
- to eat food
- to curl into a ball; to fold up and hold one's legs.
- The diver tucked, flipped, and opened up at the last moment.
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Full Definition of tuck