Central Pennsylvania Institute of Science and Technology - Per Wikipedia, a hat tip is an act of tipping or (especially in British English) doffing one's hat as a cultural expression of recognition,
Graduation 2022: How to doff your cap | hand | Joining us for graduation this week? Things will look a little different at this year's ceremonies, due to Covid-19. Instead of shaking
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Amazon.com: You Had Me at Doffing - Men's Flexfit Baseball Cap Hat, Black, Small/Medium : Clothing, Shoes & Jewelry
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Amazon.com: You Had Me at Doffing - Men's Flexfit Baseball Cap Hat, Black, Small/Medium : Clothing, Shoes & Jewelry
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