1. What does it mean?
집순이 is an informal, often affectionate name for a female homebody. It describes preferring home-based rest or hobbies over frequent outings. People commonly use it about themselves.
Also written or said as jipsuni
2. The nuance
It does not mean someone is lonely, unable to socialize, or always indoors. As a gendered nickname, it is best used when the person is comfortable with it.
3. Examples
“나는 집순이라 쉬는 날엔 방에서 책 읽는 게 좋아.”
I'm a homebody, so on days off I like reading in my room.
“집순이여도 좋아하는 공연은 보러 나가.”
Even though I'm a homebody, I go out for performances I love.
Sources
References support the meaning and usage. Example sentences are written for NoCapWiki.