spark plug

(redirected from spark-plugs)

spark plug

One who energizes others with one's ideas and positive personality. Primarily heard in US. Kelly was the spark plug the company needed to get their new project off the ground.
See also: plug, spark
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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References in classic literature ?
Of limousine bodies, carburettors, spark-plugs, and inner tubes he spoke with freedom and eloquence, but the subject of love and marriage he avoided absolutely.