Traumatic Sleep Injury, or TSI, is when you wake up with an unknown injury that occured while one sleeps or is passed out.
Zeke: "Hey Kelly why are you limping?"
Kelly: "I don't know, I woke up with a sore knee."
Zeke: "Classic Traumatic Sleep Injury, you need one bourbon, one scotch, and one beer."
Kelly: "I don't know, I woke up with a sore knee."
Zeke: "Classic Traumatic Sleep Injury, you need one bourbon, one scotch, and one beer."
by Zulu Bravo January 30, 2014
Get the Traumatic Sleep Injurymug.