There's this Vietnamese expression that we Viets like to apply whenever we're talking about some little imp that is just too cute for words who is also wise to the ways of babies and how they can get away with HOMICIDE because they have 4 little toofs and fat meaty cheeks and big liquidy eyes.
Directly translated it means "So Mean!" Like, "This baby is mad-dogging me!"
It's pronounced yuoh waa! And it has to be with an ! because you don't just say it, you exclaim it!
This is Emmy's yuoh waa! face. It could also be her Ba Chang face. Which means Scowly Old Dragon Lady. Loosely translated.