A fork of Rural Dictionary
Simply put, the floor the goes unsearched. Any Salty Jake knows that there are never victims on the 3rd floor of a house fire. Residents know to leave a building, especially the 3rd floor if it is the fire floor, so a Salty Jake knows not to waste his time searching more than 2 floors.
A kid almost died on the third floor.
Partying on the third floor is a reference to what happens at a party given by P diddy when he takes you up to the third floor. The third floor is where men are having sex with men
If you think a man is gay, "He's partying on the third floor"