A term popularized in a cartoon from the 60's that starred a genius dog named Mr. Peabody. It was his trademeark phrase, often said to the child (whose name was Sherman) whom he would always be explaining history or science to (with his own unusual twist of course). Sherman would retort with a smart remark, to which Mr. Peabody would reply "Quiet, you!".

NOTE: this definition applies to guys only (girls can't do a quiet piss)
when you aim your piss at a dry section of the toilet (usually just above the water line farthest from you), so it doesn't make as much noise as when you pee directly into the water

The person in the room that does not talk to anyone or talks very little. This person is usually very smart, polite, nice, and wise but will go unnoticed, but in contrast they can be extremely insulting and cold, if they wanted to be, as they don't care too much for nor about what people think.

Lots of schools have this kind of kid called the "quiet kid" . Who are they? What do they do to us? They usually don't talk alot, we don't know what do they feel but we might thought that he or she is gothic, rude, bad. But some of them are, but some of them aren't rude. We hate them because they are boring or faking depression. But inside of a quiet kid is fun, they never shown themselves, they are shy and quiet in school. However, when they go home, they go loud.

Im a quiet kid too.

Most teachers know that shy students are like anyone else in their class: we want to reach them and hope that they have a good class experience. I have never known a teacher to dislike a shy student, if that is what you are asking. ... As an introvert myself, I relate to these students very well!

From: What do teachers think of shy students? - Quorawww.quora.com What-do-teachers-think-of-shy-students

More quiet than "too quiet".

A term made popular by a cartoon on the Cartoon Network; Kids Next Door.

In this case, the word "three" adds emphasis in which it's used to describe how great something is or to exaggerate ones point.

One who climaxes without making any noise.

The place you go when you hear music through headphones.