Quiet as kept could be said a few different ways; quiet as it's kept, quiet is kept. The meaning is secrecy, to keep quiet, not volunteering or distributing information on certain relations. It's often an expression used in afairs where sensitive knowledge must be kept secret in order to avoid repraisals from other groups within the same society, culture, or subculture.
It was business as usual, quiet as kept.
by -=) February 18, 2005
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A person in a long term, sexual relationship, who does not work. But instead, is taken care of financially. Only with the unspoken understanding, they must peform certain duties, to remain in said lifestyle. Term most often applies to females, but may include males as well.
"That chick hasn't worked one day in her entire life. She's a one-hundred percent kept bitch."
by D. Gould January 23, 2006
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A female that is "kept" by a wealthy person in case their current relationship / marriage falls through. They are often paid a yearly salary to stay on retainer.
The kept in "kept girl" implies two things: One being that they are well kept for financially, the other being that they are kept by what could be considered their owner, ie. they are "keeping" her.

"She's a kept girl."
by WHOA. May 30, 2008
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An individual who has been self entertained for a long period of time. Un able to affiliate with others due to a barrier of something.
She has had a very self-kept life due to her parents strict rules and guidelines.
by Amber Ayedon December 28, 2009
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in good condition, kept in a garage when not in use
This car has been garage kept. The body's excellent.
by VAKI5 May 9, 2005
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Up to date; I got it. ; I gotchu;
"Hey did you hear that new song?" "Yeah bro I'm kept"

"Hey the part will start at ten ok?" "Sure man, I'm kept"
by Pizzalynx2020 October 10, 2016
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a man that has a older woman or cougar take care of them
You are a kept nigga!
by KEPT NIGGA January 11, 2017
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