A person whom is specifically defined by the girth, length and prominence of their chin. Often an indication of sexual prowess or excessive testosterone.
Usage: Sure, i mean your dick is big, but 'bout that chin though?

"Wow, he's 16 and has such a massive chin. What a Chin Guy"
"I shaved my beard down so im more of a ChinGuy"
@7as - Discord Daddy.
by 7as October 19, 2020
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