Latin for "you will be a priest forever". Originally in Psalm 110:4, it is used to
remind people that you can be President for a term, or a policeman for a lifetime,
but a priest's duties extend beyond mortal life.
Consider that Dante Alighieri put an inordinate amount of members of the Clergy in his
Hell, and justified this by saying that if you are the Pope, you must take
care even when you cough, to do it the right way.
Umberto Eco uses the phrase in his book "The Name of the Rose", when William of Baskerville
tries to extract an information from the Abbot, before realizing that he's bound by the
seal of Confession.
Eco manages to describe vividly William's concerned embarassment, as he mutters the biblical
quote as an apology: a priest's burden is already quite heavy as it is.
This useful trivia was brought to you by the "Stun your Opponent with Latin Phrases" corporation.