One of the mysteries of the English language finally explained.
1rare Any strong, especially low quality, alcoholic drink; = "lightning". Now somewhat rare.
2Originally: electrical energy stored by a device such as a capacitor or battery. Later: the electrical power generated by a very powerful battery.
3figurative Figurative. Stored or concentrated energy, vitality, or dynamism. Also in "like bottled lightning" and variants: with great intensity or energy.
Early 18th century; earliest use found in Stage: a Poem. From bottled + lightning.
bottled lightning/ˌbɒtld ˈlʌɪtnɪŋ/
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