He became for a short time delirious, in consequence of attempting to comprehend the works of Mr. Nebulous, in which the English language is exhibited casting of summersets, with many prancings to and fro, before earnest-gazing, head-scratching readers, in murkiest obscuration, marvel stricken, with maddest humour and grinning contortions, heels-over-head, wondrous!
Source: wiktionary
Yogi Berra is best known as a Hall of Fame catcher with the 1950s Yankees and for spouting head-scratching malapropisms such as "Ninety per cent of the game is half mental," but he also was a solid baseball man with good managerial instincts.
Source: wiktionary
For someone who professed such deep respect for numbers, Plato certainly used some head-scratching ones in his Atlantis story. The dates don't match up even remotely with ancient history.
Source: wiktionary
[…] Milly got out of her basket to reconsider the matter. It took some deliberation and head scratching to decide the best method; […]
Source: wiktionary
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