To crush with the teeth; to chew with a grinding noise; to craunch; as, to crunch a biscuit.

the sound of something crunching; "he heard the crunch of footsteps on the gravel path"

the act of crushing

make crunching noises; "his shoes were crunching on the gravel"

press or grind with a crunching noise

chew noisily; "The children crunched the celery sticks"

reduce to small pieces or particles by pounding or abrading; "grind the spices in a mortar"; "mash the garlic"

A position where you have one or more checkers back, and have made a lot of points in your inner board. If you have to start giving up those points because you have to move checkers in, you are said to be "crunching."

This situation happens when the roll of dice force a player to break a build on the board or in his home.

A position in which a player's prime falls apart due to the lack of alternative plays.

a sit-up where you stop after raising your shoulders off the floor

a very effective, full-range abdominal exercise where you lie on your back, and curl your trunk, moving your chest bone (sternum) towards your pubic area while keeping your lower back on the floor

An exercise that isolates and challenges the abdominal muscles.

The crunch, often mistaken for a curl-up, is one of the most common exercises for the abdominal muscles, primarily the rectus abdominis. It is performed while lying face up on the floor with knees bent, by curling the shoulders up towards the pelvis. The hands may be placed behind the head, but care should be taken not to pull on the neck, as this can cause injury.