in one's birthday suit
01
(of a person) not having any clothes on
Humorous
Idiom
Exempel
After a long day at work, Aurora enjoyed unwinding by sunbathing in her backyard in her birthday suit, soaking up the warm rays.
During the heatwave, the group of friends decided to cool off by skinny-dipping in the lake, enjoying the refreshing water in their birthday suits under the moonlight.
