A nickname for your favorite kitten out of a litter of kittens.
My favorite kitten is Flarna. She's my little moopsie!
by queendenise June 11, 2009
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Being of equal parts of extreme adorableness and metal as fuck. The epitome of cuddly cuteness while violently drinking the bones of living creatures.
Orca’s and hippos are so MOOPSY. One second, you’re like “awwwww”, then the next you’re a scene from final destination!
by FishTeeth October 12, 2023
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A cute but crazy girl who loves giving blow jobs .

Taken from the alien species "The Moopsy" in the Star Trek series Lower Decks. That survives by turning it's victims bones to liquid and then ingesting them .
That girl is so cute, but why does she have to be such a Moopsy .
by LordMingeFister September 30, 2023
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