Top Definition
A man who forces someone to give him oral sex. Comes from Catullus, the best of ancient Roman poets, who uses this word to describe a government official in poem 10.
Stay away from John; he's such an irrumator. Last time Susan slept with him, she could hardly talk the next day because her throat was so sore.
by Super Sara November 07, 2005
The latin word describing a man sucking another mans penis. This was considered the lowest form of sex by the Romans. A man having his penis sucked was a fellator.
Lucius Pipinna is such an irrumator.
by Cookie1456 October 21, 2007

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