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We found 19 dictionaries with English definitions that include the word whacko: Click on the first link on a line below to go directly to a page where "whacko" is defined. General (18 matching dictionaries) whacko: American Heritage Dictionary of the English Language [home, info] whacko: Collins English Dictionary [home, info] whacko: Vocabulary.com [home, info] whacko: Macmillan Dictionary [home, info] whacko: Merriam-Webster's Online Dictionary, 11th Edition [home, info] Whacko, whacko: Wordnik [home, info] whacko: Compact Oxford English Dictionary [home, info] whacko: Webster's New World College Dictionary, 4th Ed. [home, info] whacko: Infoplease Dictionary [home, info] whacko: Dictionary.com [home, info] Whacko, Whacko: Wikipedia, the Free Encyclopedia [home, info] whacko: Rhymezone [home, info] whacko: Free Dictionary [home, info] whacko: Mnemonic Dictionary [home, info] whacko: LookWAYup Translating Dictionary/Thesaurus [home, info] whacko: Dictionary/thesaurus [home, info] Slang (1 matching dictionary) whacko: Urban Dictionary [home, info]

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (whacko) ▸ noun:  a person who is regarded as eccentric or mad