Hummilingus

(noun) The act of humming while performing cunnilingus, for the specific purpose of enhancing one's partner's pleasure. The "humming" could literally be an audible humming sound created with the vocal tract, or alternatively, only a figure of speech, used to describe any number of techniques for causing the mouth, tongue, cheeks, or other parts of the face to rapidly oscillate or vibrate. Origin: Probably a portmanteau of the verb to hum and the noun cunnilingus. Of uncertain date of origin, but frequently used within the last five years on the internet by some of the reclusive writers who post at forums where extramarital affairs are discussed. Also seen at completely different forums, where perplexed schoolteachers ponder the meaning of recently coined words, used by their students. (In this case, UrbanDictionary.com provides a valuable public service to educational professionals!)