touchpaper

/ ˈtʌtʃˌpeɪpə /

noun

1. paper soaked in saltpetre and used for firing gunpowder
2. light the touchpaper or light the blue touchpaper
   to do something that will cause much anger or excitement

Example Sentences

If a roman candle is intended to be fired singly, twist a piece of touchpaper round the mouth.

From Project Gutenberg

After lighting the touchpaper, remove to a distance; as bits of string are likely to get driven into the face, on the explosion.

From Project Gutenberg

He then placed the touchpaper on an old cambric handkerchief.

From Project Gutenberg