Definition of rum

• n. - 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.
• a. - Old-fashioned; queer; odd; as, a rum idea; a rum fellow.
• n. - A queer or odd person or thing; a country parson.