Everton toffee, n. — Green’s Dictionary of Slang

Everton toffee n.

[rhy. sl.; like white coffee, this toffee is also made with cream or (later) evaporated milk. Note nickname for the British football club Everton, ‘the Toffees’]

coffee.

1857		‘Ducange Anglicus’ Vulgar Tongue.
1859, 1860		Hotten Dict. of Modern Sl. etc.
1873		Sl. Dict.
1927		Shields Dly News 2 Dec. 2/7: I went out to buy some [...] ‘Everton toffee’ (coffee).