WHACKO


Meaning of WHACKO in English

~ 1

■ exclamation Brit. informal, dated used to express delight and enthusiasm.

Origin

1940s: from whack + -o .

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~ 2

■ adjective &noun ( plural ~s ) variant spelling of wacko .

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.