A special type of celebration that occurs after you have taken a gigantic shit. The method of action is, as soon as the disaster falls, you jump in the air as high as possible with a clinched fist while shouting "YEEEEAAAHHHH!!!".
The bathroom floor was painted brown and dripping due to John's most recent celebshit-tion.

Never celebshitate if you have diarrhea. Amanda figured this out the hard way.
by numandina October 29, 2008
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