Agressive diarrhea, more violent in nature than regular diarrhea, and where each episode requires a longer than normal visit to the restroom. Similar in nature to extreme vomiting after drinking WAY too much alcohol after a long night of partying except that material is ejected from the other end. (The word is funnier if pronounced "Buttheavin' ".)
Dude, why were you in there so long?
Sorry, I was butt heaving.

Don't go in there yet, someone was just in there buttheavin'.
by Internet Dan February 8, 2010
Get the Butt Heaving mug.
Same idea as dry heaving, but out of your ass.
I had the worst diarrhea cramps, but when I sat down nothing came out! I had a bad case of the dry butt heaves.

The driest of butt heaves.
by Kiki398 November 6, 2006
Get the dry butt heaves mug.
One who acts with purposeful malice to another. An undesirable person.
"Did you hear what the boss just said about us being lazy, what a butt heave."
by Jahedg September 20, 2011
Get the Butt Heave mug.