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Obscenis, peream, Priape, si non("I'd rather die than use obscene and improper words; but when you, as a god, appear with your balls hanging out, it is appropriate for me to speak of cunts and cocks.")
uti me pudet improbisque verbis
sed cum tu posito deus pudore
ostendas mihi coleos patentes
cum cunno mihi mentula est vocanda
- From Wikipedia: Latin Profanity