The arbitrary amount of time it takes to install Windows XP on your computer. Usually somewhere between 40 and 120 earth minutes
I need to reinstall windows. I'll be back online in exactly one microsoft hour.
Your computer will be ready in one microsoft hour and 30 microsoft minutes
Your computer will be ready in one microsoft hour and 30 microsoft minutes
by d4m4s74 August 22, 2012

An hour at night where, once reached, would end up for you being better off staying awake for the rest of the night than to fall asleep past that given time. Generally is 4:00 A.M.
by ⬆⬅⬊⬊⬆⬅⬅ January 16, 2018

The eons of the night when everything begins to close and the intrusive thought start to kick in. Also a kick ass album by Abel ‘The Weeknd’ Tesfaye that saved 2020 from being the complete and utter muck it was.
Clock: 3:11 AM
Friend 1: “Man I’m hungry and everything is closed !”
Friend 2: “I know dude, it’s after hours now.”
Walt: “ Jesse..play Escape from LA from After Hours….even if we scare the hoes.”
Friend 1: “Man I’m hungry and everything is closed !”
Friend 2: “I know dude, it’s after hours now.”
Walt: “ Jesse..play Escape from LA from After Hours….even if we scare the hoes.”
by Supes_13 September 14, 2022

Anytime after 11 pm
by Drake 1 on 1 August 6, 2015

The time frame in which a female can call or text you because the rest of your day is about business
by Bsomemajor October 5, 2019

Similar to milliamp-hour in the measurement in the capacity of a battery, Mask Hours or Mask Hour is used to measure the capacity of time a face-mask can be worn during a global pandemic.
Bro, you might want to change your blue face mask; the standard mask hours should be roughly 4 hours and you've worn yours for more than 32. Don't shake *my* hand.
by VisyVisyVis89 August 20, 2020

by LeonardoDicapyahoe June 2, 2017
