A congregation of over 100 fat people in the same place at the same time, each of which ways over 350lbs/159.1kg.
I'm sorry but I can't go to your weight watchers meeting, I have to go to a fatastrophe later.
by Barrack Binladen April 15, 2010
When someone is so fat it is a catastrophe.
That's a fatastrophe!
by TurtleHDPokinU April 08, 2009