The kitchen midden. The dust-bin. The farmer's midden is the
dunghill. The word is Scotch. (Danish, mödding; Norwegian, mudder; Welsh, mwydo (to wet), our mud and mire.)
Better marry over the midden than over the moor.
Better seek a wife among your neighbours whom you know than among
strangers of whom you know nothing. The midden, in Scotland, is the
domestic rubbish heap.
Ilka cock craws loodest on its ain midden.
In English, “Every cock crows loudest on his own dunghill.” A
midden is an ash-pit, a refuse-heap.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894