Bikini (n): a very brief two-piece swimsuit for women. Mono (adj): a monochromic picture, i.e. picture executed in black and white or in varying tones of only one color. Monokini (n): A mixed media painting series by Rebecca Hinson where most of the image is in black and white except for the one piece (and sometimes 2 piece) bathing suit. Media includes gouache, sumi ink, pencil, gold leaf, and acrylic on thick watercolor paper. Ok, so that last one is MY definition of a monokini. A monokini is a real thing though. These days it’s generally thought of as a one piece women’s bathin..