Definition of "nevermind"

Hell, they've got groundrules and guidelines comin' out the kazoo, but do they pay any nevermind to 'em?

2002, William Walling, It's Too Late to Leave Early

"... buy what he wants. It's none of your nevermind."

1949, A.B. Guthrie, Jr., The Way West‎, page 22

"These is my brothers, Tom and Benjamin. We's from Missoura. Would you be Yankee or Secesh?" / "Neither one," Joe said. "Not that it's any nevermind o' yours, Mr. Wickersham."

2008, Gary Franklin, Blood at Bear Lake, page 76

Let 'em say she was his mistress, that she was a witch. Wasn't true, but it didn't make any nevermind if they thought it was. Nice woman, quiet, could tell the cards.

1926, Lester Cohen, Sweepings‎, page 306

Either way—doesn't mean no nevermind to me, you understand.

1997, Annie Jones, Irish Eyes‎, page 211

So it don't make a heap of nevermind to me which one you choose!

2002, Lee Gramling, Ninety-Mile Prairie‎, Pineapple Press, page 248

If'n it makes any nevermind, you'll be grubbin' alongside me.

2005, Larry Jay Martin, O'Rourke's Revenge, page 21

Nevermind a sustainable river, a sustainable earth, like an improvident farmer who kills his only milk cow because he wants steak tonight.

1989, William Mills, The Arkansas: An American River, page 159

"Ya, that's a good idea, neverminding. Let's nevermind, huh?"

2002, Chris Lynch, Freewill, page 28

Nevermind that she didn't know him, or that he was Japanese. Nevermind that she saw herself as always alone, despite the many people in her life.

2003, Nina Revoyr, Southland, page 280

Nevermind where the eggs & sperm came from. Nevermind how it is that all these planets & stars came from nothing.

2005, Alexander T. Newport, The Vomit Factory (Life Is Fake: Death Is Good), page 399