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1.
An event that otherwise would not be especially remarkable, until having occurred with shit. Usually considered a surprise and unpleasant.

If an event occurs and involves a surprise shit and is not offensive, then it is a happenshit.
If you have a shart in the elevator of the building you work in, you might be saying, "I had a shitcident in front of the boss, now how am I going to win that promotion?"

If you found a bag of flaming dog shit at your front door, you might report the shitcident to your homeowners' association. ... I wouldn't if I were you, though. You probably deserved it.

When a cat can't make the catbox and is imitating Pollock on the walls with shit smears, you point and exclaim, "Is this fucking shitcident because of you, Mr. Pussy McFluffypants?!"
by Sara Heartburn September 28, 2010
14 2
 
2.
When a monster poo clogs the toilet, and evasive cleanup measures are required for post-flush overflow.
I came home from my jog to find that my husband had spent the last 45 minutes cleaning up after an unfortunate shitcident.
by Dumper's Wife April 21, 2010
4 1
 
3.
An incident in which shit hitting the fan is an immediate result.
by dj ngar January 24, 2011
1 0
 
4.
Not neccesarily to shit one's self, a Shitcident is when you nearly make the toilet but you fling some shit from your ass as you sit and later have to clean it up.
I had someone waiting on me in the lobby but I had a shitcident when I got to the room and I had to make them wait an extra 5.
by Goat Gut May 27, 2008
1 2