Wiktionary
n. (alternative form of batshit English)
Usage examples of "bat shit".
Having crossed the rimstone pool to wander at the other end of the chamber, he stood absolutely still, noting the acidic moldy odor of bat shit.
I hate everybody and everything, and I especially hate this blasted cave and sincerely hope all caves the world over fill with bat shit.
Why would men of science, like Dylan McCaffrey and Wilhelm Hoffritz, associate with a purveyor of bat shit and bunkum?
First Fergus, I mean, then Father Fogdcn and Mamacita, and now a dowry of ten tons of bat shit.
If the sight of the room wasn't familiar, the smell of bat shit certainly was.
And then she did something that Quinn had seen no one do for twenty-five years, and then it had been his mentor, Gerard Ryder, who most people agreed had been eccentric to the point of being full-blown bat shit.