touch paper

noun

1. paper saturated with potassium nitrate to make it burn slowly, used for igniting explosives and fireworks.

Word History and Origins

Origin of touch paper¹

First recorded in 1740–50

Example Sentences

However history suggests there is plenty of potential for the blue touch paper to be ignited once again.

From BBC

Chasing just 115, the Sussex openers were given licence to play with freedom and Harrison Ward lit the touch paper with six fours in a rapid knock of 27 from 18 balls.

From BBC

England are yet to light the touch paper in this Six Nations, which began with victories over Italy and Wales before defeat in Edinburgh ended their unbeaten start.

From BBC

England have been lacking in the world-class department over their three games so far and there hasn't been the individual to light the touch paper.

From BBC

But while the attack failed to light the touch paper, England's new blitz, implemented by defence coach Felix Jones, remained relatively resolute.

From BBC