A cibling is a term used for someone who is genetically your cousin but is like a brother or sister to you and is a fusion of the words cousin and sibling. It is a term of endearment that expresses great closeness to the recipient, in essence saying that the recipient is even closer than a cousin, but is like your own sibling.
"Oh that's Hernando, we're ciblings!"
A cult or religion made by a group of school children in which they worship Satan, Kate Freedman and Billy the seagull they also have a sacred book with rules to follow