TINDERBOX
tinderbox
(noun) a box for holding tinder
tinderbox
(noun) a dangerous state of affairs; a situation that is a potential source of violence; “the Balkans are the tinderbox of Europe”
Source: WordNet® 3.1
Etymology
Noun
tinderbox (plural tinderboxes)
A small container containing flint, steel, and tinder (dry, finely-divided fibrous matter), once used to help kindle a fire.
(by extension) a place that is so dry and hot that there is danger of fire.
(by extension) a potentially dangerous situation.
Hypernyms
• box
Source: Wiktionary