1. a round hat with a flat top and narrow brim

Examples

• He wore a classic porkpie hat with his vintage suit.
• The jazz musician’s porkpie hat became his signature look.
• She found an old porkpie hat in her grandfather’s closet.
• The porkpie hat was popular among men in the 1940s and 1950s.
• His black porkpie hat complemented his formal attire perfectly.