Having a lack of sleep; as your spine elongates as you sleep, reversing the effects of gravity on your spine.
If you don't sleep enough your spine will have less time to stretch out and be more compressed when you wake up then if you slept a full length
"ya man I showed up short to that exam"
Official is the definition of short.
A short official chair stands behind a tree.
When you’re in a terrible situation
Wow this is worse than a short well and a straight pipe.