birthday suit

Etymology
From the lack of clothes worn when one is born.

Noun

 * 1)  Nakedness, unclothed skin; an exposure of a human's natural anatomy without clothing.

Usage notes

 * Usually used in the phrase “in one’s birthday suit”, but sometimes seen alone; for example, as in “Guess what she was wearing? Her birthday suit!”

Translations

 * Catalan: vestit d'Adam
 * Chinese:
 * Mandarin:, , 赤身裸体
 * Danish: adamskostume, evakostume
 * Dutch:, evakostuum, paradijskostuum
 * Estonian:
 * Finnish: syntymäasu, aataminpuku
 * French:, , , dans son plus simple appareil
 * German:, Evakostüm , wie Gott ihn/sie schuf
 * Greek:
 * Hebrew:, בִּלְבוּשׁ חַוָּה
 * Hungarian:
 * Japanese:
 * Korean:
 * Latvian:
 * Lithuanian: Adomo kostiumas, Ievos kostiumas
 * Malay:, telanjang
 * Norwegian:
 * Bokmål:, i evas drakt
 * Nynorsk:, i evas drakt
 * Persian: لخت مادرزاد
 * Polish: strój Adama
 * Portuguese: in one’s birthday suit:
 * Romanian: costumul lui Adam
 * Russian: костю́м Ада́ма, , to be in one’s birthday suit: в чём мать родила́
 * Spanish: to be in one’s birthday suit: estar como su madre le trajo al mundo
 * Swedish:
 * Thai: ชุดวันเกิด