1. [mid–late 19C] (US, also chaw up) to mangle, to get the better of, to surpass, to destroy; often as chawed (up) adj. (cf. chew up v. (1)).
2. [mid-19C–1900s] (US campus) to trick, to hoax.
3. [late 19C–1900s] (US) used in oaths, e.g. chaw me up if...
4. [1980s] to arrest; thus chawry goods, stolen property.
SE in slang uses
see chew the fat v.