kangaroo (EN)
noun, adjective

noun “kangaroo”

sg. kangaroo, pl. kangaroos
  1. an animal from Australia that hops on its strong back legs and carries its young in a pouch
    The kangaroo mother carried her joey in her pouch as she bounded across the outback.

adjective “kangaroo”

kangaroo, non-gradable
  1. describing a financial market with quickly changing prices that are not consistently rising or falling
    Investors were wary of the kangaroo market, as stock prices seemed to hop unpredictably from one day to the next.