Simple Definition of powder keg
: a small container that is used to hold gunpowder
: a place or situation that is likely to become dangerous or violent soon
Full Definition of powder keg
1 : a small usually metal cask for holding gunpowder or blasting powder
2 : something liable to explode
Examples of powder keg in a sentence
Political instability has made the region a powder keg.
<the immigration bill has become a political powder keg for legislators on both sides of the aisle>
First Known Use of powder keg
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