Birthday suit

[Becky]

ones bare skin (from the fact that a person would not have any clothes on the minute they were born)

[Becky]

Nude; not an inch of clothing on your body(We were born naked)

[Little_Girl]

When you have nothing on. Completely naked.

[Becky]

means naked, nude
Background from Atlanta, USA

[Jessica]

naked

[Tanya Shivari]

having no clothes or covering garments upon ones body; nude

[Britney]

A suit that looks like youre naked, and look like you were a baby.

[Magaret]

[Basically naked] , the way [one is] born , defined by renowned spokesmen [M o] h a k C

[Kit]

The [suit] you were [wearing] on [your birthday]