Green’s Dictionary of Slang

treacle toffee n.

[rhy. sl.]

coffee.

Eve. Teleg. (Dundee, Scot.) 3 Aug. 4/1: He had no breakfast as the ‘New York Nippers’ were burnt up to a ‘Bertha Winder’ and the ‘treacle’ (‘treacle toffee’ - coffee) was stone ‘Harry’ (‘Harry Gold’ - cold).