A-bomb test of June on Bikini, the Marshall Islands atoll, locally Pikinni and said to derive from pik "surface" and ni "coconut," but this is uncertain. The term underwear certainly means something that is worn under the clothes. It was in the s when the bikini was made to be a mandatory uniform for the bodybuilders. Since then, both men and women have been wearing the style as a uniform while before that, only women wore it as their swimwear style. It is a very rare finding that the name of the style was adopted from the hydrogen bomb testing that was conducted at Bikini Atoll in the South Pacific. Did you know that?