Quote Originally Posted by Shalon14 View Post
Funner is a word. However, it's not quite as formal as "more fun." I would say this is an informal setting so it's perfectly acceptable to use. A lot of words and phrases are used in every day speech they we wouldn't write in a paper for school or something.
funner is not a word. Most likely the word you're thinking of is funnier which isn't a real word either, but is still used on a wide basis. Fun, funnier, funniest... Funner has no meaning whatsoever and is a result of peoples lacking english skills, and I have only seen it amongst people on the internet.