Definitions by Roundhouse Ninja Kick

mayonnaise jar 

a gal who's been around eventually developing a cavernous and sperm lubed vagina from the multitudes of men she's slept with. A loose trick.

Did you hear her Nuva Ring slid right out when she was balling that nameless guy off the street? What a mayonnaise jar!

mayonnaise jar by Roundhouse Ninja Kick March 19, 2010