The act of making a blurp sound; producing short, popping, bubbling sounds repeatedly.
From 'blurp' plus the present participle suffix '-ing.' 'Blurp' itself is onomatopoetic, so 'blurping' simply marks the ongoing action.
Onomatopoeia like 'blurping' show that English directly borrowed sounds from nature—your brain literally recognizes the sound within the word before you consciously understand it.
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