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4.
Betterer is not a real word!
Is is a word used by bogans whom believe that you can make something broken more than better.
Only a true bogan will use a word like betterer
John: Here is your PC fixed
Shazza: Did you make it betterer?
John: What the F&*K are you on about? How can you make something betterer when its fixed? You Stoopid bogan!
by Cruzin July 05, 2006
 
1.
better than better. Often used when trying to trump someones belief that one thing is better than another.
Dave: Google is better. Sally: Yahoo is betterer.
by CakeEater1Million July 23, 2008
 
2.
The act of being more betterer.
Som is more betterer than "EvilSmokey"
by Fa shiz January 20, 2005
 
3.
adj. An improper way of saying that something has improved but not by much.

It's basically like saying: Something has improved, but not enough to say that it's 'better'

Note: An emphasis (italics) is usually placed on the last "er" to make clear the lack of substantial improvement.
Examples:

1)
Child: How do you feel I'm doing with my sparring?
Karate Instructor: It's ... better'er' - you still got some work to do.

2)
Person 1: How are you doing in school?
Person 2: I'm doing betterer ... I'm still getting some Cs though.
by TheShark06 October 23, 2006