sibling-in-law

1. The spouse of one's sibling.
2. The sibling of one's spouse.

My sibling-in-law is a good person.

by Elivaldeq November 24, 2019

lee siblings

They're the best siblings in the world, like the Oxford dictionary said "Lee Siblings : the best siblings. If you want to call your siblings goals, use Lee first."

"I have a Lee Siblings. They're goals af."

by Jejujo July 10, 2017

Younger Sibling Syndrome

When a younger sibling constantly feels inferior to their older sibling.

there always compared to their sibling, it’s a clear case of Younger Sibling Syndrome

by Imhotandurnot November 14, 2022