Oxford Dictionary English fellatio nounnoun BrE BrE//fəˈleɪʃiəʊ// ; NAmE NAmE//fəˈleɪʃioʊ// [uncountable] (formal) Add to my wordlistjump to other resultsthe practice of touching a man’s penis with the tongue and lips to give sexual pleasure Word Originlate 19th cent.: modern Latin, from Latin fellare ‘to suck’.Check pronunciation: fellatio oxfordlearnersdictionaries.com
