not by a long chalk वाक्य

I don't think I'm alone in this, not by a long chalk.
And the answer is clearly no, of course they don't, not by a long chalk.
I haven't finished work on the article, not by a long chalk, but I don't think I'll ever finish while Slatersteven nitpicks over every tiny matter he can find, reverts edits without prior discussion or without understanding how to read sources, introduces unreliable and incorrectly-formatted references, and generally behaves as though I exist only to satisfy his curiosity.