Definition

A male aesthetic icon from the 2000s who rocks black, fitted clothes, long dark hair strategically covering his face, and listens to emotionally intense music—ostensibly sensitive and in-touch with his feelings, though his hair obscures most facial expressions anyway.

Example Usage

He showed up to the concert in all black with eyeliner and that long swoopy hair; total emo boy energy.

Source: Urban Dictionary (https://www.urbandictionary.com/define.php?term=emo%20boy&defid=1176318)