Flood Butt
a far more liquid case of mud butt where one's shit seems more like piss coming out of your ass.
Oh, shit! Stop the car! I've got flood butt like a mother fucker!!
Butt Flood
When a fat person is sitting on a small chair and their butt appears to be flooding over the edge. Sometimes refereed to as Floods or Levee chair
Holy Crap man did you see the butt flood on her, it is almost touching the ground !