whiffle dust
Ⅰ
noun
1
amphetamine powder. From the imaginary magic powder used by conjurors, manufacturers, marketing professionals and others to enhance their product or presentation UK, 2003.
2
MDMA, the recreational drug best known as ecstasy UK, 2003⇨ See: MUMMY DUST
Ⅱ ⇨ mummy dust; whiffle dust
noun an imaginary magic powder used by conjurors, manufacturers, marketing professionals and others to enhance their product or presentation AUSTRALIA, 2000