Definitions by lannan.7

Siblingist

To be unfair or bias against a certain sibling.

Your being siblingist against your brother.

Siblingist by lannan.7 October 15, 2019

siblingist

To be unfair or bias against a certain sibling.

Your being siblingist against your brother/sister.

siblingist by lannan.7 October 15, 2019