bikini = the bottom part (only) of a two-piece bikini
men in bikinis; men's bikinis; etc
1972 December 21, “Jet”, in (Please provide the book title or journal name), page 4:
[…]Men In Bikinis? Dear Editor: I am a Black young woman who I would enjoy seeing a dude in a pair of trunks instead of seeing a chick in a bikini every week — at least every other week. I am sure there are thousands of other chicks out[…]
2019 February 4, Wren Richards, Nsa Unzipped and Exposed, Archway Publishing, →ISBN:
[A package of] Buck Naked [brand], hot pink, men's bikinis, with a concealed fly.
topless bikini = monokini
1986, Funk & Wagnall's New Encyclopedia Yearbook 1986, →ISBN:
After Stephanie showed up on the island of Mauritius in a topless bikini, Rainier allegedly vowed to sue any publication that printed photographs of the uncovered princess. […]
2002, Ann Douglas, Canuck Chicks and Maple Leaf Mamas: Women of the Great White North, a Celebration of Canadian Women:
[The] topless bikini (or monokini) and the see-through dress also make their mark.
2019 November 22, Heather Vaughan Lee, Artifacts from American Fashion, Bloomsbury Publishing USA, →ISBN:
[…]topless bikini on model Peggy Moffitt (b. 1940) in the 1964 issue of Life magazine. Gernreich's "mono-kini" shocked the American public, […]
other
1992, Sally Heywood, The Gemini Bride, Harlequin Books, →ISBN:
[He would grab hold] of her bikini bottom and, bunching it in his hands, begin to drag her towards the far end of the pool. Coughing and spluttering, she tried to swivel free, nearly losing her bikini, and only managing to hang on to it with one hand, while hitting out at him with the other. Missing completely, she only splashed herself all the more in the process, continuing to lash out more furiously as he[…]
2012, Steve Bedwell, Holden V Ford: The Cars, the Culture, the Competition, ReadHowYouWant.com, →ISBN, page 182:
[…]bare chested, bikini-clad, hanging-ten fun times, the Sandman Van and Ute came with 'four-speed manual gearbox, wide hip-hugging buckets, full GTS sports instrumentation, GTS sports wheels, GTS headlamp bezels.
