birthday suit 

having no clothes or covering garments upon ones body; nude

I got really drunk and ran around in my birthday suit!

birthday suit by D. Willy April 24, 2003

birthday suit 

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

I found it embarrassing for them to see me in my birthday suit.

birthday suit by Light Joker August 3, 2005

Birthday suit 

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

I feel really comfortable roaming around home in my birthday Suit.

Birthday suit by fragger123 December 7, 2017

birthday suit 

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

" For her anniversary, Mrs. Smith got into her birthday suit for Mr. Smith."

birthday suit by Ashanda February 4, 2007

Birthday Suit 

When you have nothing on. Completely naked.

The night I got back from my tour of duty, my lady put on her birthday suit.

Birthday Suit by jimmyjump December 28, 2010

birthday suit 

naked

ill strut in my birthday suit, and let everything hang loose

birthday suit by dotdotdash May 5, 2011

birthday suit 

means naked, nude
Background from Atlanta, USA

'I won't stop until I get them in their birthday suits'(Ludacris)

birthday suit by Senasu March 24, 2005