to be third-floored is to walk by a group and catch the one phrase of their conversation that makes your imagination shut down.
*walking by some people, minding own buisness, from the group: "It had FEET on its HEAD, okay?" *to yourself-"third floored."
*heard over a crowd: "and i said, use a condom before you rape me!"
*as you walk by some people, they hear: "but humans aren't meat flavored goo! oouuchh, they were third-floored"