when one is sooo fat that that individual belongs in the circus or some sort of carnival setting
Man! That bitch is circus fat
by big burls September 17, 2002
When your roommate drags the woman of his dreams out of a bar at 2 AM and Ringling Bros. calls and wants her back.
My buddy Dale brought his girlfriend home and boy was she circus fat!
by Donkeyshow November 21, 2003