Top Definition
1. A dude that is really into fat chicks
2. A chick with a lot of fat.
1. "Wow, check her out. HOT!"

"You mean the chick holding the big-mac? Sorry, bro, i'm not down with the thickness"
2. "That chick scarfing the big-mac is really down with the thickness."
by creeky-creak the freak January 29, 2010

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