This phrase is used by people who want time to move quickly, so they may move on with their lives, ala prison release, military discharge, school graduation...
The inmate said "3 weeks until I flatten this time, so Hurry Sundown!"
Sundowning is a term used to describe a decline in cognitive abilities toward the late afternoon or evening. It is a common pattern in senile dementia.
PoorGrandma tends towards sundowning around dusk; she's fairly alert in the morning but gets more confused in the evening.
A word that encompesses a large varity of objects places and or persons. A term of indearment, used for firends and family. Used to describe a good humored person.