tropes - What is the origin of this weird looking facial feature

I have seen this in one or two animes (plural of anime?) where characters have long cylindrical protruding mouths. It is quite rare(?) as I had seen this in only a handful of anime shows (I don't k

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A) Faces created for the name “Rick.” The faces on the top row are

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tropes - What is the origin of this weird looking facial feature/mask? - Anime & Manga Stack Exchange

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