(verb)
to quickly, roughly, or carelessly put something together (either literally or figuratively), typically from the elements and/or resources available (often used as "cobble together");
e.g. Together, they were able to cobble together a budget in a very short span of time.
(verb)
in British usage, to make or mend something, especially shoes, often coarsely;
e.g. He is trained to cobble men's shoes.
(noun)
a medium-sized rounded stone, often with a smooth surface, typically used to pave the surfaces of roads, i.e. a cobblestone;
e.g. The workers placed one cobble after another into the wet concrete to build the road.
(noun)
in British usage, a small rounded lump of coal;
e.g. The truck carried a load of cobbles.