yous

English doesn't have a 2^nd person plural pronoun, so you are supposed to use "you" for singular and plural forms. However, some people use "yous" instead.
I think it is a good idea to use "yous", but I don't, because it sounds weird.

The strangest part is that when English did have two 2^nd person pronouns "you" was the plural form, the singular being "thou."

N-Wing, in my neck of the woods (chicago) this word is not only completely acceptable, it is used to a ridulous extent. Especially on the south side.
Not everyone here has the quintesential Chicago accent, but those who do use this word regularly.

'Yous' is also used (or 'yoused' - ha ha) in several other places as part of a regional accent or dialect of English.

Other localities in America where I've heard it include New Jersey, where it is part of the oh so attractive Jersey accent, the New York City area, including the outer boroughs and downscale part of Long Island (where it is often followed by 'guys'), and the Cincinnati area, especially the West Side.

In the UK, it is a characteristic part of the Scouser accent of the Liverpool area, and is widely used in Northern England and throughout Scotland.

On either continent, it seems to be a working class phenomenon.