Crow is the sweetest boy in a group, he's mostly calm but tends to get chaotic when he feels safe, he likes dogs and is very handsome. Also incredibly gay.
Like the other definition it is a small puffy bird, but considering you are probably from BTS, the Korean meaning may be a little bit more helpful. The term was used in a famous Korean proverb referring to someone who is trying to be someone they aren't just to fit in. Eventually that meaning became more well known. A beautiful meaning to fit in a beautiful song.
Together, J-Hope, Jungkook: Hey crow-tits everyone hands up
Crow smart is simply the misconception that someone or something is smart, when in reality the subject is simply smarter than people thought they were. Like the common crow, they are still pretty stupid.
The definition originates from the recent studies showing that crows are intelligent. Crows are not intelligent, they are just intelligent for a bird, as well as more intelligent than we thought they were.
Basically all other chordates are smarter than birds.
Person 1: Hey dude, Mike just explained to me that if you add up all of the angles of any type of triangle it equals 180 degrees! He's pretty smart huh?
Person 2: No not really, he's just crow smart. He flunked geometry twice already so he should no those concepts by now. Good to know he's finally learning though.