Jim, I hope someone knowledgeable about African click sounds can respond to the question about whether there is a connection between that an eephing as you're describing it.

I know 'beans' about African click sounds. (And yes, my use of beans was intentional to connect back with your use of 'rasberry')

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Also, the "ub" in my previous post was not an attempt to eeph or represent an oral sound. It's just a little ole typo for "in".

Sorry 'bout that.