whoopie

/ˈhuːpi/
noun
  1. A small, soft, sweet cake made of two chocolate or other flavored rounds with a creamy filling in between; also called a whoopie pie.
    • My grandmother makes the best chocolate whoopies for dessert.
    • The bakery sells whoopies in vanilla, chocolate, and red velvet.
    • We bought a box of pumpkin whoopies at the fall fair.
What does "whoopie" mean? | whatsthatwordmean | whatsthatwordmean