Definitions by M^V

untie 

a gender-fluid term for the relative of a sibling's child (uncle-auntie)L

"Brandon, your untie (mother's sibling) is here!"

untie by M^V August 1, 2022

chibling 

stands for "child of my sibling", a gender-fluid term

"chib" for short

"I took my chibling (child of my sibling) to Lollapalooza last week! My sister was so jealous."

chibling by M^V August 1, 2022