1. A member of the church of promiscuity.

2. A religious, but promiscuous person.
1. Man: Hey, would you be interested in joining our church?

Woman: What church are you?

Man: We're promiscuitarians, the church of promiscuity.

Woman: I'm in.

2. Tim: Hey, you know Cathy?

Mark: Yeah.

Tim: I'm totally going to do her!

Mark: She's so uptight and religious, she'll never let you.

Tim: Yeah, it looks like that, but she's actually a promiscuitarian.

Mark: Sweet.
by ZMan March 2, 2010
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