chunk

A coarse slice of meat or bread; more properly junk. Also, the negro term for lumps of firewood.

Chunk
·noun A short, thick piece of anything. ...

Webster's Dictionary of the English Language
chunk
Among printers, a journeyman who refuses to work for legal wages; the same as the flint among taylor...

Dictionary of The Vulgar Tongue by Francis Grose
chunk
A short, thick piece of wood.--Webster. Ihis word is provincial in the South of England.--Ray. Grose...

Dictionary of American Words And Phrases by John Russell Bartlett.