Unni 

A Korean term that means older/big sister that females call a female relative or a older girl they admire or respect. It is sometimes used as a honorific or to replace a person's name.
There are many variations on spelling like Eonnie, Eonni, Unnie, Eunni, Eunnie, or onnie. The male version of this term is Nuna or Noona.

Yoona-unni is so nice she helped me study for high school exams.

Unni by Diviana March 25, 2010

unni 

pretty af. Dom child. sly af.

damn here comes unni

unni by consuela1244 November 24, 2021

unni sucker

Someone who sucks unni's dick.

John is a unni sucker because he sucked unni's dick.

unni sucker by laglol September 3, 2013

unnie

If you are a girl, this is what you call another girl who is older than you, or a girl who you respect. (Korean term)

Talking to CL: Unnie, you are the baddest female.

unnie by apeeling June 12, 2013

Unnie

A Korean term that means older/big sister that females call a female relative or a older girl they a admire or respect. It is sometimes used as a honorific or to replace a person's name.
There are many variations on spelling like Unni, Eonni, Eonnie, Eunni, Eunnie, or onnie. The male version of this term is Nuna or Noona.

Sang-Hee is my Unnie. I really respect her.

Unnie by Diviana March 25, 2010

Unnie

A Korean honorific/term used by a younger female referring to an older female.

Jisoo unnie!
Unnie, are you okay?

Unnie by gabe itch lmao June 30, 2020

Unniversary 

An unniversary is the yearly celebration of the day you became divorced. Whether a happy or depressing celebration is up to the participant.

"Let's wish a merry unniversary to Ben, who is celebrating his sixth year since his soul-crushing divorce from Rebecca. How's that loneliness treating you?"

Unniversary by Will Rickabaugh October 19, 2006