adverb, noun or participle which takes 'suru'
crunch crunch; scraping sound
Mimetic word for the crisp, light sound of two hard, thin objects rubbing or being crushed together, such as ice, snow, or crispy food.
かき氷を食べると、口の中でしゃりしゃりと音がする。
When you eat shaved ice, it makes a crunching sound in your mouth.
Walking on the snow made a crunching sound.