Dragon's Piss (Earth-21: Post-Crisis)

"Most people worry about the fire, but it's the piss that'll get you. Should pop his head like a balloon."

- Willoughby Kipling on Dragons

Dragon's Piss is a magic explosive used by Willoughby Kipling.

History
When the Doom Force faced Darren Jones, who had stolen Niles Caulder's decapitated head, Willoughby Kipling proposed to use Dragon's Piss as an explosive.