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1.
When your so depressed you dont care about anything anymore and become dead on the inside thus dead inside, its pretty much another way of saying clinical depression
No longer care about people or yourself ..(dead inside)
by Mr Sparda February 19, 2007
 
2.
AWFUL smelling fart
When a person's fart is so deadly that you have to stick your head out the window to breathe and you say to them you are dead inside!
by scrumjus1 September 04, 2010