A non-binary sibling. Historically your sister.
“I asked Jordan if I should say ‘sibling’ or ‘sister’ in reference to them. They said they like the term ‘sibster.’”
“My sibster Alex drew this! They are such a good artist.”
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Gender neutral term to refer to a sibling. Often used as a replacement for sister/brother.
This is my sibster Kai, they are really good at smash Bros.
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A sibster is a person who acts like everyone's sister. A sibster has lots of friends and pals, because they are very friendly. A sibster is like a sister but is of no blood relation.
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