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1.
I've had enough of listening to your drivel. Begone!

As spoken memorably by the inimitable Gene Wilder as Willy Wonka himself in "Willie Wonka and the Chocolate Factory":

Grandpa Joe: You're a crook. You're a cheat and a swindler. How could you do a thing like this, raise up a little boy's hopes and then dash all his dreams to pieces? You're an inhuman monster.
Willy Wonka: I said good day!
by Glinda October 03, 2005
 
2.
Signature line by the character Fez of the TV show That '70s Show. No matter the conversation, it always ends when Fez says, "I said good day."
Fez: "Good day."
Eric: "But Fez..."
Fez: (Interrupting) "I said good day!"
by Thomas Harper May 14, 2007
 
3.
When the old english people had to reapeat themselves, you know they wre pissed off!
Leave me alone already and leave!
by Your Mom November 13, 2003