Shpeak indishtinctly

I believe the answer is:

slur

(Other definitions for slur that I've seen before include "Negative comment" , "Pronounce indistinctly with each sound running into the next" , "Slight; blur" , "Insinuation, allegation" , "Insinuation; indistinct utterance" .)

I've seen this clue in The New York Times.

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