Any variety of stimulant drugs (particularly those which are derived from chemicals rather than an organic source) including PCP, crack, methamphetamine, Adderall, or Ritalin.
A literal drink crafted by the poor blue collar laborers of Pittsburgh's steel industry and handed down from generation to generation to its current residence of the White Eagle, located on East Carson street at the end of the south side.
Rocket fuel is a drink so strong and served so large that it must be split with a group of friends willing to go to moon.
When people use the term "this is rocket fuel" they are referring back to this Pittsburgh nectar and comparing their current drink and its strength to the legendary mix.
Similar to california turnaround coffee. Made with excessive amounts of coffee grinds early in the morning. The first cup of said pot, or replacing the pot with your mug. Will keep you awake for a long time.
I was falling asleep at the video monitors until Jake handed me a cup of rocket fuel to take the sleep away.