ngMoww.wuf HHgMe [ŋʘɒɔuʬ˥˥˩˩˧.wɨÿf˩˨˩ ʜᶢʘɛɜ˨˥˦˧˩], known in English as Neptunian, is the lingua franca amongst the ngMoww.wuf of Neptune. since the ngMoww.wuf have no tongues, all consonants are either nasal, bilabial, or epiglottal.

Neptunian has many bizarre features: it has a phonemic lip smack [ʬ], snort [𝼀], and spurt [ʘ↑]. it is also polysynthetic, has around 3,125 possible tones, and zero monophthongs, with vowel clusters ranging from 2 to 40 vowels.