Acronym for Wiccan in Name Only. Someone who claims to be Wiccan, but seldom (if ever) observes the festival days or performs the appropriate rituals. Such people claim to know everything about Wicca, but in truth know very little about the religion or its practices.
"Cassandra claims that she observed the Samhain rituals, but I know for a fact she spent the night at a Halloween party.
She is such a WiNo."