noun

fellatio

fuh-LAY-shee-oh

Fellatio (noun) means Oral sex performed on a penis.

noun

Oral sex performed on a penis.

"The book discussed fellatio in clinical, non-explicit terms."

How to use fellatio

Learner’s notes

In plain EnglishA clinical, Latin-derived term rather than a slang one.

When to use it

Formal/clinical register; used in medical, legal, or academic contexts rather than casual speech.

Word forms

fellatios plural

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Etymology

A learned 19th-century borrowing from Latin fellatio, from fello ("to suck"). It first showed up in medical writing, and a 1919 California Supreme Court ruling actually struck down an anti-fellatio law because the state constitution required statutes to be written in English — fellatio was still considered Latin at the time.

Origin: Latin · First attested 1919

Class of 1919 fellatio joined the language around 1919.

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Synonyms

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fellation

Rhymes for fellatio

io CIO bio tio rio Mio Pio Gio trio Clio Akio radio

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Frequently asked questions

What is the meaning of fellatio?

"fellatio" (noun) means oral sex performed on a penis.

What is another word for fellatio?

Other words for "fellatio" include fellation.

How do you use fellatio in a sentence?

Example: "The book discussed fellatio in clinical, non-explicit terms."