Gay fuel is often defined incorrectly.
Zima is the correct term
After Benjamin and Wendell had a Zima they were ready for some rusty nail anal action.
Benjamin: Want a gay fuel friend?
Wendell: Oh! You big silly, you mean a Zima!
A special drink made for the gay. Tastes about the same as Dr. Pepper (according to gay people...) and it's colored pink. It is said to increase arousement for gay people.
It's also used as a big fad in YTMND.
John and Nick drank Gay Fuel before having anal intercourse.