Brown tornado 

So you've got the ceiling fan on, and during sex you take a shit, throw it up onto the fan and your girl has to catch it in her mouth.

Hey girl, there's gonna be a brown tornado storming through here tonight ;)

Brown tornado by PoDPerks December 8, 2015

Brown eyed tornado 

Explosive diarrhea, characterized by leaving a bathroom in a state of complete disrepair.

Stephen: You were in the bathroom for a while, are you okay?
Marielle: All those donuts stirred up a brown eyed tornado in there. It might be easier if we just move.

Brown eyed tornado by Hforce January 16, 2018