A meme made to poke fun at westerners (mainly koreaboos) who completely butcher the Korean language such as Oli London
Onion on sale is a how they sound like when they attempt to say annyeonghaseyo (안녕하세요) which is the formal word which means hello in Korean.
Person 1: onion on sale oppar, sarong hay
(Annyeonghaseyo oppa, saranghae)
Person 2: lmao your Korean sucks, you know oppa means older brother right..?