A voiceless velar implosive is a very rare consonantal sound. The symbol for this sound in the International Phonetic Alphabet is or theoretically . A dedicated IPA letter, , was retired in 1993.
Features of a voiceless velar implosive:
A phonemic has not been confirmed for any language. It has been claimed for Lendu, but it is more likely to be creaky-voiced , as in Hausa. Some English speakers use a voiceless velar implosive to imitate the "glug-glug" sound of liquid being poured from a bottle, though others use a voiced implosive [] or an uvular one [].
In Uspantek, and perhaps other Mayan languages of Guatemala, is a rare allophone of . Of the consonants with glottalic airstream, the labial and uvular vary as ~ and ~ , depending on the position in the word. In contrast, the velar is nearly always , but speakers have been recorded using .