Definition of "Speedos"

The women usually wore bikini tops with shorts, swimsuits underneath cover-ups or just swimsuits. Men came in various types of trunks, from traditional boxers, to Speedos, to G-string trunks that showcased their packages.

2013, Velvet Carter, Blissfully Yours, page 93

There were dozens of girls there - girls on the deck in bathing suits, most of them Speedos because they were racing.

2014, Norah McClintick, #3 Dead And Gone, page 12