Numpties is valid Scrabble Word

Is numpties a scrabble word?
Official Scrabble Players Dictionary NO
Official Tournament and Club Word List NO
Collins Scrabble Words YES
Is numpties valid Words with Friends?
Words with Friends NO

Definitions for NUMPTIES in dictionary:

Words related to NUMPTIES

numpty13
Find what other words can be done using letters: "numpties"
https://scrabble-word.com/finder/numpties
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