1. shut up
2. what you say to someone when they outsmart you and don't know what to say.
homer: I'm the first non-Brazilian person to travel backwards through time.
mr peabody: Correction, Homer, you're the second.
sherman: That's right, Mr. Peabody!
mr peabody: Quiet, you.
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!".
Sherman: "So you might say, it was a real Pow-wow."
Mr. Peabody: "Quiet, you!"
1.To tell People to shut up.
2.Being more rude
1.En:that's wrong Rlyn. Rlyn: Quiet you.
2.En:I'm getting pissed off at you
Rlyn: Quiet you