Verb; used to describe an African-American or extremely tan person whose bodies produce excess amounts of Melonin, the chemical which allows skin on the body to tan. 'Watermelonin' refers to the racial stereotype of African-American's having an overt fondness for Watermelons, thus anyone with an excessively dark complexion is said to have Matermelonin.
by Matthew Johnstonson January 9, 2009
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