When committing a crime the individual partaking in it would prefer to be dressed in all black, witch makes sense at night seeing it is easier to blend in all black at night however being all blacked out in the daytime is suspicious and ironically draws more attention to person. To combat this a person who commits crimes should where neutral colours during the day, preferably grey to blend in and not seem dodgy however at sunset it would be in your best interest to wear all black. Therefore the phrase "greyed out in the day blacked out at night" came to be.
Person 1:I like being blacked out at all time fuck wearing other colours
Person 2:Bro, that will draw more attention to yourself. greyed out in the day blacked out at night. Not as bangers.
Person 1: Fair enough
When you're on a computer and something isn't available to select, sometimes it will appear in greyscale instead of colour to make it more clear that you can't select it. This option is "greyed out."
I had already picked "forest" for my colourscheme, so when I went to change it, "forest" was greyed out because I couldn't select it again.
Ruler of Lake Titicaca. Rumored to have a bunghole that gets very angry if it does not receive toilet paper. Cornholio the Great is often seen walking around with his shirt over his head and his hands in the air, chanting songs about his power, and his bunghole.
"I am Cornholio! You do not want to face the wrath of my bunghole, for I need TP!"
Butthead: Shut up, Beavis! (uh huh huh huh)
Beavis: Um, okay. (heh heh heh heh).