Moxie

From Wikipedia:

In the episode of The Simpsons, "Homer's Phobia", a DRINK MOXIE sign can be seen behind the cash register.

In the Futurama episode That's Lobstertainment!, the credits in Zoid's clip says "Buy Moxie".

In the episode "Return to Spider-Skull Island" of the Cartoon Network Adult Swim show The Venture Bros., necromancer Dr. Orpheus asks for a "tonic", and specifically requests Moxie.

"Moxie" has come to mean "energy", or "pep", in common usage, and is included in standard dictionaries.

http://en.wikipedia.org/wiki/Moxie

http://www.moxie.info/