Originating from the SNES video game "Final Fight", this term is used when normal time is just too fast. In "Final Fight", the game gives the player about thirty to ninety seconds to comlpete a stage. However, each Final Fight Second is approximately ten earth seconds.
Tim: "Wow, that test was so easy, I finished it in, like, 6 seconds!"
Jane: "Yeah, like, 6 seconds in Final Fight Time."