The construction not about to is often used to express determination: We are not about to negotiate with terrorists. A majority of the Usage Panel considers this usage acceptable in speech but not in formal writing. ·About is traditionally used to refer to the relation between a narrative and its subject: a book about Cézanne; a movie about the Boston Massacre. This use has lately been extended to refer to the relation between various nonlinguistic entities and the things they make manifest, as in The party was mostly about showing off their new offices or His designs are about the use of rough-textured materials. This practice probably originates with the expression That's what it's all about, but it remains controversial. Fifty-nine percent of the Usage Panel rejected this use in the example A designer teapot isn't about making tea; it is about letting people know that you have a hundred dollars to spend on a teapot.
The way it works is that it negates the following sentence, much in the way the above examples would. used in street slang and grime music
Mike: about i ragged tony, i'm not gay blud
Yeah that was “about smart” = that was a stupid thing to do.
He's "bout ugly" = he's good looking
Adjective - Something someone (like your gossipin' friend !) told you that is totally useless to you and does not affect you in any way.
Yes, in Canada they pronounce this the right way! Ha!