Shiznits

shiznits

rude slang A term intended as a humorous and milder replacement for the word "shit" and its wide variety of meanings and applications. A: "I think there might be a problem with your internet connection." B: "No shiznits, Tom." Holy shiznits, I can't believe you actually made it to the party! I thought you were still in Japan! Oh, shiznits—I didn't mean to erase the entire file! That's nearly three hours of work totally down the drain!
Farlex Dictionary of Idioms.

Shiznits!

exclam. Shit! Oh, shiznits! I broke it.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • full of shizzle
References in periodicals archive
9) Pray to god your 5D MarkIII doesn't explode from supercharging the living shiznits out of it.