Crossword Genius

Sweetie (3)

Ross

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3

2,4

(Other definitions for boo that I've seen before include "Shout of dislike" , "Voice disapproval" , "Surprising exclamation" , "Disapproving sound" , "Cry of disapproval as at villain" .)

I've seen this clue in the King Feature Syndicate, The Star Tribune, the USA Today, The New York Times, the LA Times, the Universal, the Penny Press and The Wall Street Journal.
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