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sparks fly

1. There is a lot of animosity, arguing, or angry tension (between two people). The two managers have drastically different ideas of how the business should be run, so sparks fly whenever they are in a meeting together.
2. There is a lot of romantic and sexual chemistry (between two people). Sparks flew when I first met my husband. We just had a natural connection that has survived to this day.
See also: fly, Sparks

make the sparks fly

Start a fight or argument, as in If Mary finds out he went to the races without her, that will make the sparks fly. In this idiom, the small particles of a fire called sparks are transferred to an inflammatory situation. [Early 1900s]
See also: fly, make, Sparks

sparks fly

1. If sparks fly between two people, they get angry with each other and argue. They are not afraid to tackle the issues or let the sparks fly when necessary. Tempers flare and sparks fly with great ferocity as the couple argue.
2. If sparks fly between two people, they are very excited by or interested in each other, often in a sexual way. Whenever these two actors are on screen, sparks fly.
See also: fly, Sparks

strike sparks off each other

mainly BRITISH
If people who are trying to achieve something together strike sparks off each other, they react to each other in a very exciting or creative way. They have that creative partnership where they just strike sparks off each other.
See also: each, off, other, Sparks, strike

sparks fly

a discussion becomes heated or lively.
See also: fly, Sparks

strike sparks off each other (or one another)

(of two or more people) creatively inspire each other while working on something.
See also: each, off, other, Sparks, strike

the ˌfeathers/ˌfur/ˌsparks will ˈfly

(informal) there will be anger, annoyance, etc: The fur will really fly when she tells him he can’t go out tonight.
See also: feather, fly, fur, Sparks, will
References in classic literature ?
They would not listen; and drew nearer, saying, while bright sparks showered from their lips, "We will not let you go, for you have promised to be ours if the gems you brought proved worthless; so fling away this cold white cloak, and bathe with us in the fire fountains, and help us bring back to our bosom flames the light we gave you for the child.
The next moment I saw a tiny red spark advancing from the farther end of the house in the pitch darkness.
Because, Tom,' said his sister, after silently watching the sparks awhile, 'as I get older, and nearer growing up, I often sit wondering here, and think how unfortunate it is for me that I can't reconcile you to home better than I am able to do.
Porthos, left alone, applied the spark bravely to the match.
I know I can't prevent your doing so, but if you have a spark of conscience.
He had indulged in some wistful hopes that for once his master might have relaxed, that an opportune word of congratulation might awaken some spark of generosity in the man who had just added a fortune to his great store.
A strong breeze soon fanned the spark into a flame, and the eaglets, as yet unfledged and helpless, were roasted in their nest and dropped down dead at the bottom of the tree.
Hope my fellows have not got into trouble up there," muttered Uncle Mac, adding with a satisfied chuckle, as a spark shone out, "No; there it goes
Any woman with a spark of spirit in her would have "meant" it under those circumstances.
There was nothing to guide her, for everything seemed without a spark of life.
Barbicane had regulated his chronometer to the tenth part of a second by that of Murchison the engineer, who was charged with the duty of firing the gun by means of an electric spark.
A momentary spark of light flashed up, as from a kindled match, in the burial-ground.
The spark of joy kindled in Kitty seemed to have infected everyone in the church.
And as she blows, and shading it with her lean hand, concentrates its red spark of light, it serves in the dim morning as a lamp to show him what he sees of her.
It was a thing to be done with perfect confidence, without any of that apprehension which Claire inspired lest the next remark might prove the spark to cause an explosion.