See also: Fellatio


Alternative formsEdit


Borrowed from Latin fellātio, from fellātus, perfect participle of fellō (I suck, I fellate). The word started to appear in medical literature in the 19th century but it was still treated as Latin. In 1919 the California Supreme Court struck down a law criminalizing "fellatio" because the state constitution required laws to be written in English. By the late 20th century fellatio was treated as an English word.



fellatio (usually uncountable, plural fellatios)

  1. (sex) The stimulation of the penis (or testicles) using the mouth.
    Synonyms: blowjob, French, gobby, hummer, head, nosh, penilingus; see also Thesaurus:oral sex
    Coordinate terms: cunnilingus, anilingus
    • 1897, Havelock Ellis, Das Konträre Geschlechtsgefühl [Sexual Inversion] (in German):
      In 7 oder 8 anderen Fällen ging die geschlechtliche Beziehung selten über enge Berührung oder gegenseitige Masturbation hinaus. In 2 oder 3 anderen Fällen ist fellatio die bevorzugte Methode.
      In eight or nine [sic] cases the sexual relationship rarely goes beyond close physical contact, or at most mutual masturbation. In two or three cases fellatio is the form preferred.
    • [1919 January 9, Supreme Court of California, In re Lockett, 57 Cal. Dec. 96:
      That the word "fellatio" has not become Anglicized is so clearly apparent that further comment seems unnecessary. [] Section 288a of the Penal Code is void for uncertainty as well as for the reason that it is not expressed in the English language.]

Derived termsEdit

Related termsEdit


  • This translation table is meant for standard terms only. For informal, colloquial and vulgar terms, see the translation table at blowjob.

See alsoEdit

Further readingEdit



Borrowed from Latin fellātiōnem, from fellātus, perfect participle of fellō (to suck, to fellate).


fellatio f (invariable)

  1. oral sex in which the penis of one of the participants is orally stimulated




fellō (to suck) +‎ -tiō (action-noun suffix)


(Classical) IPA(key): /feːlˈlaː.ti.oː/, [feːlˈlʲäːt̪ioː]


fēllātiō f (genitive fēllātiōnis); third declension

  1. fellatio


Third-declension noun.

Case Singular Plural
Nominative fēllātiō fēllātiōnēs
Genitive fēllātiōnis fēllātiōnum
Dative fēllātiōnī fēllātiōnibus
Accusative fēllātiōnem fēllātiōnēs
Ablative fēllātiōne fēllātiōnibus
Vocative fēllātiō fēllātiōnēs