A kind of army ant said to devour every living thing in its path
Any of several large wasps known for their painful stings:
Origin
From the 1954 movie The Naked Jungle, perhaps directly from the other etymology, or from a parallel South American source, though this would apparently have been the first time it was applied to ants.
From Kimbundu marimbonda (Sceliphron spirifex (species), a bright yellow and black wasp)
Modern English dictionary
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