An inexact but mind-blowingly large number, somewhere between a centillion and a googolplex. If every atom in the observable universe were replaced by a universe the size of the observable universe, and then every atom in the resulting universe were replaced by a universe the size of the observable universe, the number of atoms in that resulting universe would be dwarfed by a shitillion. Not a term to be used lightly.
A common term used to refer to Italy when things go stereotypically wrong, such as at the post office, corrupt politicians, bad tv, wasted public money, new infrastructure that is 20 years out of date by the time it is ready. Most used as a hashtag.
Silvio Berlusconi's private disco featured not only aspiring showgirls performing striptease acts as sexy nuns and nurses, but onewoman dressed up as President Barack Obama and a prominent Milan prosecutor whom the billionaire media mogul has accused of persecuting him. #Shitaly
One who calls attention to problems peopledon't want to talk about, often in a fashion that offends others. Connotes a degree of righteous indignation or "uncomfortable truth".
"Dude's a shitcaller, but you have to admit he has a point."