What is Crunch ?
Crunch is (noun) 1. the sound of something dry being crushed the crunch of dry snow under his boots 2. a crisis point The crunch will come when the firm has no cash to pay the wages. if it comes to the crunch if crisis point is reached When it came to the crunch, the other side backed down.(verb) 1. to crush something dry The snow crunched under his boots. 2. to chew something hard which makes a noise when you are eating She was crunching an apple when the phone rang.
source: Easier English, Student Dictionary Upper Intermediate Level