Meaning of the word "in your birthday suit" in English

What does "in your birthday suit" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

in your birthday suit

US /ɪn jʊər ˈbɜrθ.deɪ suːt/
UK /ɪn jɔː ˈbɜːθ.deɪ suːt/
"in your birthday suit" picture

Idiom

naked; without any clothes on

Example:
He was caught running around the garden in his birthday suit.
She felt embarrassed to be seen in her birthday suit.