Head Nuns

Head nuns in the Vegas Dioces,
So peddle their oral expertise,
That between praying to God
And patrons shooting their wad,
They spend all of their time on their knees.

A group of women in a religious order is variously called a convent, priory, abby, nunnery or cloister. The head nun is known as the mother superior, abbess or prior(ess). Sometimes a prioress is instead ranked just below the abbess.