Definition of ball of fire in US English:

ball of fire

noun

  • 1Fire or flame in the shape of a ball; especially applied descriptively to luminous meteors and ball lightning. Also specifically: the fireball resulting from the explosion of a nuclear device.

  • 2A person of great liveliness or spirit.

Phrases

  • great balls of fire

    • Informal (originally and chiefly US) : used as an exclamation to express amazement or delighted surprise.

Origin

Late 16th century; earliest use found in Arthur Golding (d. 1606), translator. From ball + of + fire.

Pronunciation

ball of fire

/ˌbɔːl əv ˈfʌɪə/