1) Molasses 
• (n.) A mixture of spirituous liquor (usually rum) and molasses. • (n.) Bad port wine; any common wine of the Mediterranean; -- so called by sailors.
(from the article `rum`) ...sailors received regular rations of rum from the 18th century until 1970. Rum, the major liquor distilled during the early history of the United ...
Black'strap` (-străp) noun 1. A mixture of spirituous liquor (usually rum) and molasses. « No blackstrap to-night; switchel, or ginger pop. Judd. » 2. Bad port wine; any common wine of the Mediterranean; -- so called by sailors.