Which preposition to use with chawing

of Occurrences 3%

The Commander then mounted ontop of the wash-stand, and helpin' hisself to a chaw of tobacker out of my box, which lay aside him, the old scoundrel commenced firin' his tobacker juice in my new white hat.

up Occurrences 2%

he 'd wear 'im ter a frazzle, en den chaw up de frazzle; en he'd done it, too, for Mars Dugal' 'uz a monst'us brash man w'en he once git started.

at Occurrences 1%

Four months alone I walked the chalk, I thought my heart would break; And all them boys a-slappin' my back And axin', "What'll you take?" I never slep' without dreamin' dreams Of Burbin, Peach, or Rye, But I chawed at my niggerhead and swore

Which preposition to use with  chawing