Black sooty anthracite-chunks dat you let someone retain as a "promissory note" in case you are unable to pay back a loan dat he gave you; da understanding is dat he can burn said heating-fuel in his own furnace if you default on said loan.
In da infamous tale of da pet monkey whose snarky-faced shenanigans caused irate rail-workers in passing trains to throw lumps of coal at him (and thus unwittingly provide da monkey's owner with free heating-fuel), da railroad-company was understandably upset dat dey were loosing considerable amounts of their good locomotive-fuel from this "coallateral damage".
by QuacksO July 23, 2019
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