"funner"

Have you heard "funner"? I've heard people use this. I like it. However I've also heard "more funner" which just doesn't make sense.

Yes, I've heard it. "It's funner than that is." It should be funnier, not funner, but I think some kids/children say that.

Yes, mostly kids - but I've heard it used instead of "more fun" - it would be funner to go swimming - not as a substitute for funnier.

That's an interesting point. If "it" is a movie, I would say "funnier", but I think you are correct, tbd.

Two words:

Fun
Funny

How anyone could not see the difference is beyond me.

Traditionally, 'fun' is a noun, not an adjective, although if you asked native English

speakers what part of speach 'fun' is they might say the latter, or both.

I have heard "funner" before, but only in whimsical, nonsensical or amusment-type speach,

like "uh uh, this is more funner than that", similar to how people say "thunk" for

'thought', etc.

Neither is correct though. "More fun" is what I would say for both.