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1.
Sex with a priest. First coined in alt.recovery.catholicism.
She had a weakness for Jesuits which manifested itself in priestiality.
by Ignatius June 19, 2004
 
2.
The taboo act of child molestation by priests, common in the Catholic church.
Top Vatican officials did not defrock a priest in a priestiality case involving as many as 200 deaf boys.
by Winking Chicken April 11, 2010
 
3.
To use religion as a way to score some bald beaver or some young buns.
He knew he was a victim of priestiality when the priest shot his holy ghost all over him.
by eli martin October 03, 2007