Bullshit. Originated on the original "Battlestar Galactica" program.
"Read what the Sci-Fi Channel has planned for the 'Battlestar Galactica' revival? Man, what a load of FELDERCARB!"
An expletive used by the characters of Battlestar Galactica that refers to the putrid and crusty black grime that would accumulate on various pieces of machinery and required scraping off during maintenance. Possibly Battlestar-speak for bullshit.
"The XO wants a full report from you about the fight in the mess hall on his desk by morning."
"Hey, I spent all night confined to quarters already, and Tyrol was out of the infirmary in a couple hours. This is a load of feldercarb."