1. What does it mean?
글삭 abbreviates 글 삭제. It refers to removing a post from a forum, feed, or similar space, without necessarily describing why it was removed.
Also written or said as 글 삭제, geulsak
2. The nuance
글삭 alone can be neutral. 글삭튀 adds the idea of deleting and fleeing a discussion, which is accusatory; do not infer that motive from every deleted post.
3. Examples
“사진에 연락처가 보여서 일단 글삭했어.”
A contact number was visible in the photo, so I deleted the post for now.
“중복으로 올라간 공지는 글삭하고 하나만 남겼어.”
I deleted the duplicate notices and kept just one.
Sources
References support the meaning and usage. Example sentences are written for NoCapWiki.