Ah, sorry. I shouldn't have said that knowing I wouldn't be able to reply immediately.
From a linguist's perspective, "ain't" is a real word simply by virtue that it has a commonly understood meaning and is used in conversation.
Also, double+ negatives are grammatically acceptable. And you can end your sentences with a preposition as much as you want.
wooOOOooOOoooOooooOOOOooo
It's getting close to Halloween, so I thought I'd try scaring people a bit.