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1.
crazy person, usually male, as a rule cannot type ot text without making large, frequent mistakes, which subsequently become the object of ridicule in his social circle. The term was coined because of a mistake involving nober being written as noper.
"you fucking noper" to show contempt at a foolish behaviour or just to remind the noper that he is a noper
by Rhiannon and Lukey April 17, 2008
 
2.
no, the oppisite of yeppers, the oppisite of yes, refusal
would you like to purchase the extended warranty plan ? "answer" would be "nopers" , no.
 
3.
an awesome way to say no
Did you go to the movie premiere?
Noperz noperz nopers
by yepperzman April 09, 2009
 
4.
opposite of yeppers and in every way better than Kaylee's word
Announcer: your word is nopers
Girl: can u use it in a sentence?
Announcer: nopers
by Todd Paige October 12, 2008
 
5.
Adjective defining a person who does not demonstrate an obvious personality. Or a very boring individual.

Noper- No(personality)
A butter face is someone who has a nice body but her face is unattractive a noper is someone who can be good looking but is dull and lame to be around or in other words lacks a personalty.
by Kevin Tetreault July 08, 2007
 
6.
Means Nope.. specially if the person looking at this is Kristen.
Nopers.. you are wrong.
by ndhunter71 April 10, 2006