What is the meaning of Treacle?

A syrupy byproduct of sugar refining; molasses or golden syrup.

Cloying sentimental speech.

Sweetheart (from treacle tart).

Synonym of theriac: an antidote for poison, especially snakebite; a supposedly universal antidote.

Synonym of cure: an all-powerful curative for some particular affliction.

Synonym of cure-all: a panacea for all human ailments.

To apply treacle to a surface, so as to catch flies or moths, etc.

Source: wiktionary.org