Generically, fiery liquors that produce madness in total abstainers.

A kind of intoxicating liquor distilled from cane juice, or from the scummings of the boiled juice, or from treacle or molasses, or from the lees of former distillations. Also, sometimes used colloquially as a generic or a collective name for intoxicating liquor.

alcoholic drink made from sugar cane

brandy produced by the distillation of fermented wort, using sweet material derived from the cane (juice, molasses, syrup).

Old-fashioned; queer; odd; as, a rum idea; a rum fellow.

A queer or odd person or thing; a country parson.

beyond or deviating from the usual or expected; "a curious hybrid accent"; "her speech has a funny twang"; "they have some funny ideas about war"; "had an odd name"; "the peculiar aromatic odor of cloves"; "something definitely queer about this town"; "what a rum fellow"; "singular behavior"