about it

(a)bout it

mod. ready; knowledgeable; cool. (Black.) Sam is smart. He’s really about it.
References in classic literature ?
"You see, she don't want to hurt the doctor's feelings, so she don't say anything to him about it; but she is always polite, herself, and it hurts that kind for people to be rude to them."
Eppie was very joyful, for there was the prospect not only of wonder and delight at seeing a strange country, but also of coming back to tell Aaron all about it. Aaron was so much wiser than she was about most things--it would be rather pleasant to have this little advantage over him.
Silas, bewildered by the changes thirty years had brought over his native place, had stopped several persons in succession to ask them the name of this town, that he might be sure he was not under a mistake about it.
That was Tom Sawyer's idea about it, and reckoned there warn't anybody could better it.
"I guess, but I can't be the first to talk about it. You can see by that whether I guess right or wrong," said Stepan Arkadyevitch, gazing at Levin with a subtle smile.
There, that's enough, enough said about it," he said, getting up from his seat.
"I can't argue about it, I only know that it's the way of the world, and people who set themselves against it only get laughed at for their pains.
Carroll looked in when we were smoking our pipes o' Saturday night at Casson's, and he told us about it; and whenever anybody says a good word for you, the parson's ready to back it, that I'll answer for.
"Well, well, my boy, if good luck knocks at your door, don't you put your head out at window and tell it to be gone about its business, that's all.
"I can't forget that I spoke my heart to you once, and that you kept it to yourself, even though the Boss himself came to ask you about it."
Finally the Vicar announced that he wished to hear nothing more about it and with dignity left the room.
"A wench would have died in hospital..." (She knows all about it already: she said "wench," not "girl.")
How YOU talk, you better say; you don't know nothing about it. He's GOT to have a rope ladder; they all do."
'and it's foolish to cry about it.' So she brushed away her tears, and went on as cheerfully as she could.
And it isn't as I'm thinking all about ourselves, and nothing about my brother, only the money was so on my mind, I couldn't help speaking about it. And my husband and me desire to do the right thing, sir," she added, looking at Mr.