this term is used to describe a physical position; while it could be used to describe anyone who is sleeping, it is most appropriately used to describe a condition
achieved earlier than normal in the evening, perhaps after
happy hour or some alternative form of mood
management
"Hey man I called you last night around 10 to see if you wanted to go out," "
Ahh.. damn man, by 10
o'clock Ize already ten toes up."