Green’s Dictionary of Slang

(US) a mixture of rum and spruce beer.

1785, 1788, 1796		Grose Classical Dict. of the Vulgar Tongue n.p.: Calibogus, rum and spruce beer, an American beverage.
1811		Lex. Balatronicum.
1823		Egan Grose’s Classical Dict. of the Vulgar Tongue.
1861		L. De Boileau Recollections Labrador Life 162: Callibogus, a mixture of Rum and Spruce-beer, more of the former and less of the latter [F&H].
1872		Schele De Vere Americanisms 589: Calibogus, quoted already by Grose as an ‘American beverage,’ is a mixture of rum and spruce-beer; the term is evidently made from bogus, a drink made of rum and ale. It is not unlikely that the French word bagasse, the refuse of sugar-cane, may be the common ancestor of this word as well as of the bogus, that is generally traced back to a Mr. Borghese; while the first part is the same used in Calithump, Gallinipper, and similar words.