Excellent conversational filler. When you aren't saying anything and there is an akward silence, just say bobble in a nasily voice. Originally it was a shitty videogame called 3D Bobble for the DOS, but the name caught on after a series of internet cartoons depicted Bobble, the blue sphere, talking to a king.
"mmmmmbobble" Josh said to the girl
"Bobble" she replied.
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