Usage History of 'whackos'

The following chart shows how frequently 'whackos' appeared in printed materials over time. For example, the word 'whackos' occurred 1 time in books in 1951 and 262 times in 2008. From 1951 to 2008, the word 'whackos' was used a total of 2,563 times in books scanned by Google. See Reference: Google Ngram project.

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