ORGANS OF GENERATION said the Greek grammar I had at school. It meant the tongue, the teeth, the lips, the alveolar ridge, the soft palate and so forth. The other morning I was thinking about the consonant you’d produce if you bit into the soul patch with your top front teeth. The World Atlas of Linguistic Structures, in its list of languages with weird consonants, doesn’t list any with points of articulation outwith the mouth. There don’t even seem to be good names for the areas in between the bottom lip and the chin, unlike inside the mouth.
More languages have labiovelars (unlike English, but like in Laurent Gbagbo’s name) than have ‘th’ sounds (like English).