Present participle of 'bloop'—making a short, hollow sound; or hitting a bloop single in baseball.
From 'bloop' (onomatopoeia) plus the present participle suffix '-ing'. This follows standard English verb conjugation patterns for onomatopoetic words.
The word 'blooping' captures something linguistically beautiful—onomatopoeia combined with grammatical inflection, so 'blooping' actually sounds like what it describes if you say it with the right intonation!
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