Is it just me, or is it annoying when people overuse these terms. I know in Korea it's more of a generic term, and even in Korean american circles it's just something you could say when you don't know someones name (like hey you!) or for celebs and stuff because you want to imply something more respectful than -shii. But sometimes I see other ethnicities using it and i'm like??

What? For instance, there's this viet girl where I work, and everytime she see's me she's like OPPA!!!! *sqeaky high-pitched voice* First of all, she's not even Korean so I don't get why she's using it. And secondly shouldn't it be Sunbae anyway instead of Oppa. (I've been working there for alot longer than her)
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So basically to sum it up, what do you think of people that abuse the words oppa/unnie/hyung/noona?
(Mostly pre-teen girls with squeaky voices)
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I only use it if it's like my actual brother/sister, someone i've known since I was little/ is alot older than me/ Koreans I don't know the names of
honestly... you're not half as special as you think you are.