DCHP-1 Online
call one's jaw West, Slang 
See quote.
See also: jawbone
- 1885 His ready money gone he has nothing to live on but "jawbone" i.e. credit, and "to call his jaw," i.e. live on credit, till he has got further employment and more wages.
- 1885 His ready money gone he has nothing to live on but "jawbone" i.e. credit, and "to call his jaw," i.e. live on credit, till he has got further employment and more wages.