A Fool

(derogatory) A person with poor judgment or little intelligence.
(historical) A jester; a person whose role was to entertain a sovereign and the court (or lower personages).
(informal) Someone who derives pleasure from something specified.
(slang, chiefly African-American Vernacular) Buddy, dude, man.
(cooking) A type of dessert made of puréed fruit and custard or cream.
(tarot, often capitalized Fool) A particular card in a tarot deck, representing a jester.