whacko
noun/ˈwækəʊ/
/ˈwækəʊ/
(also wacko)
(plural whackos, whackoes)
(especially North American English, informal, offensive)- an offensive word for a person who you think is crazy
Definitions on the go
Look up any word in the dictionary offline, anytime, anywhere with the Oxford Advanced Learner’s Dictionary app.
Check pronunciation:
whacko