Excessively large, generally fake, breasts. Common in porn.
Jesse Jane's circus tits just don't do it for me.
by leifm October 26, 2007
1 more definition
When one breast is obviously larger than the other. Or one breast sags more. Basically a term for mismatched breasts.
Example: "I'm having trouble finding a bra that fits my damn circus tits!"
by Les Mackenzie November 27, 2006