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1.
to be very thin or skinny, the furthest thing from being fat. a great body
that dude doesn't have an ounce of fat on his body. I swear he's the anti-fat.
by westcoast bob August 03, 2008
4 2
 
2.
the exact opposite of fat.
so not fat that fat refuses to stick to you.
If fat and antifat were to ever make contact the universe would cease to exist.
you're too antifat for that boobtube.
by Slapjimmy August 21, 2006
2 0