gnaw at/on• Ratsgnawed onblackinfants' feet, while money was used to build new policestations around the corner.• A guiltypain began gnawing at her chest.• Deep in the interstices of daily life, no doubt, frustrations gnawed at him and resentments festered.• Now I took it out and gnawed on it as I went.• Now the buds are blossoming and the cricketingitch is gnawing at our stomachs.• Terry saw other apes biting themselves and each other and gnawing at the bars, all classic signs of distress.• Gentlegnawing on the tiny bones appeals to our most basic, primordialinstincts.• Did you get to die a horribledeath with giantantsgnawing at your body?