Amphetamine

Amphetamine, also called speed, is a type of drug, that is often used recreationally or for medical purposes.

When the Wonder Twins were in a hurry to get to Lonesome Pine Cave to rescue a young boy from getting killed by a bear, Zan said: "Time for some Wonder Twins Wonder Speed!" Then after a long pause, only crickets can be heard before Zan finally says: "And by speed I don't mean drugs, I mean initiative!"

External Link

 * Amphetamine at Wikipedia