Is "propular" a new word?

It is probably wrong; it is certainly not a word, but it might be a word joke, a pun. In what context did you find it, Shioya-san?

Hi,

It's a mistake.

Clive

Thank you very much.

I can find "propular" in many web sites.

http://www.alibaba.com/product-gs/379137051/Propular_Wooden_hanger.html

Propular Wooden hanger

Those are both errors. The first is a Chinese website; the second seems to be just an unedited typo.

Thank you very much!

I found the following web page.

http://www.playdota.com/forums/119223/naga-siren-may-propular-future/

It's some sort of portmanteau of pro and popular.

No, that is a mistake in typing, too. The poster's comment ('It's either some sort of portmanteau of pro and popular or the OP can't spell') is meant as a joke. The proposed portmanteau has no meaning.

I agree with anonymous (anonymously).

It may be a mistake, but it sounds as though it could be an intentional mistake that makes a new word from the words "proper" and "popular." A well-educated native speaker of English would recognize the trick and be amused by it.

Japanese has so many fun language tricks (gitaigo, giongo, etc. - please excuse my spelling) that I suspect a Ja

It may be a blend of some words (pro and popular being the most probable ones).
If so, this isn't probably the best attempt to produce a nonce-word/formation of this sort, as the meaning of the outcome isn't quite transparent (at least without a proper context). I've seen better efforts, I guess.