cunnilingus
Could not find cunnilingum in Logeion dictionaries.
cunnilingum Noun: masculine genitive plural, Noun: masculine accusative singular of cunnilingus
cunnĭ-lingus, i, m., i. q. cunnum lingens, Mart. 12, 59, 10; Auct. Priap. 78, 2 al.
cunnilingus, ī, m. = lingens cunnum, Mart. 12, 59, 10. Priap. 78, 2.