Oppa 

A Korean slang word, typically used to describe either your crush (like Japanese Senpai or Sempai ), or your celebrity crush. It informal cases, a girl would address her male best friend like this.

1) "Jiminie Oppa!"
2) Thanks, Jeongun-oppa

Oppa by ChimmyJoy March 13, 2019

Oppa 

Brother,boyfriend,or any male person that is older than you

“Oppa can you please bring food afterschool”

Oppa by Arttinaa October 31, 2019

Oppa 

Oppa (오빠), a korean word, means older brother, and can be used for several things;

For a girl to call an older male, to imply she trusts them.
For a girl to call an older male, to show respect.
For a girl to call an older male, in a flirtatious way.

This word's meaning can often be mistaken by daddy instead of older brother. Although it can be used in a flirtatious way, it isn't a way to call someone "daddy".

Also is what many ARMYs call the members of the k-pop band, BTS. I'm assuming in a flirtatious way.
The member Jungkook (the youngest) has a great dislike for being called oppa.

Example 1:

Girl: Hey, oppa! Wanna hang out today?
Boy: Oh, sure.

Example 2:

Girl: Hey there, oppa~
Boy: *Flustered* ..oh, hi.

Bonus example:

Fan: JUNGKOOKIE OPPA!
Jungkook: *TRIGGERED* I A M N O T Y O U R O P P A

Oppa by smolbeanjungkook June 29, 2018

Oppa 

Oppa comes from the words "opp" which means opposition in street slang. Oppa, however, relates to the term "Black Ops" which is a covert or clandestine operation by a government agency, a military unit or a paramilitary organization; it can include activities by private companies or groups. Someone who is under the Black Ops organisation is referred to as an "Oppa"

Marcus Luces is an oppa from the Black Ops organization.

Oppa by glizzyfrompbm May 14, 2021

oppa 

The addition of wine to the Greek dish saganaki. The wine is often lit and it looks like the dish is on fire.

I went to Greek Parthenon, and I ordered a saganaki minus the oppa because I can't have wine in my food.

oppa by largeair October 1, 2013

oppa 

1. actual word in Korean for older boy/big brother-type that idiot white kids have turned into a racial slur.

2. sign you're talking to a white kid who thinks appropriating Asian culture is cool and not offensive cause they're into K-Pop and J-Pop. Often paired with an adjective ("one sexy oppa" = hot guy, "curdled milk oppa" = ugly guy, etc.)

"Kim Hyung Joong is my favorite oppa!" said the white kid who rapes Asian culture.

oppa by icditz September 9, 2012

Oppa 

"dad" "brother" spelled different in Korean but translated same in English.

BTS addict: Hey <insert BTS idol> is my oppa!
guy: wtf he's ur dad

Oppa by yeetboi555 July 24, 2019