Never heard that it means "emotional unstable."
Two definitions from the internet:
---a style of rock music resembling punk but having more complex arrangements and lyrics that deal with more emotional subjects.
---denoting or relating to emo and its associated subculture.
Grow long bangs, dye your hair, and take pictures to post on social media with caption.
.. I think had a really small fin, was being raised by a single Dad and was abducted, and his Dad was trying to find him. He made some cool friends, had a lot of adventures .. And oh wait .. You said 'an emo' .. Not "a nemo".
Ahh nuts! .. Nevermind.
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