Female genitals. In other words: an inverted penis.
Jill is angry at her sister for stealing her earrings and says: "Your such an anti-penis!"
by Gabbsternater April 23, 2009
1 more definition
The female sexual organ as an object of derision. Pronounced like 'Antipasto'.
She's terribly ashamed of the odor and bleeding from her antipenis.
by Oogly October 25, 2007