"Bingo" (or "bingo fuel") is Viper pilot slang that indicates that their fighter's fuel reserves are too low to continue their mission and have the minimum amount of fuel necessary to return to their battlestar before running out.
A pilot usually makes the declaration to their wingman, CAG or battlestar by shouting "bingo fuel!".
- The usage of "bingo" in Battlestar Galactica is identically used in American military flight circles. In that context, the phrase "bingo ammo" means a ship's cannons have run out of shells.