the "ㅇㅠㅇ" emoji

I was watching a street-food video about fried cheese on a stick in Insa-dong (see here) when I noticed one of the Korean commenters had left the following comment:

ㅇㅠㅇ 나도.... 나도.... ("Ooh—me, too... me, too...")

At a guess, the "ㅇㅠㅇ" emoticon means "drooling face," but it reminded me of something more sinister:

As for the fried cheese... I'd have gone with halloumi. Had I stuck with mozzarella, I'd have frozen each stick, breaded it, then deep-fried the whole mess. Breading or no breading, I wouldn't have served the mozz with some weird, sugary, semen-looking sauce: it'd have been some kind of garlic-herb butter for sure. Sometimes, these street vendors have no sense when it comes to Western flavor profiles.