Green’s Dictionary of Slang

oats and chaff n.

[rhy. sl.; Northern pron.]

a footpath.

[UK]‘Ducange Anglicus’ Vulgar Tongue.
[UK]Hotten Sl. Dict.
[UK]Sl. Dict.
[UK]Shields Dly News 2 Dec. 2/7: I walked along the ‘oats and chaff’ (footpath).