You're so portuguese

A word used by the famous internet celebrity Markiplier, it's used in any random context but the most common use for it currently is referring to someone or something as cute or adorable. it also should be taken in consideration that the phrase is used predominantly towards cats due to the nature of the phrase coming from Markiplier saying to a cat in a video game

Cat : "Meoooow"
Markiplier : "Ohoho you're so Portuguese"