A term used to express shock or disbelief in a situation, person, or place. Usually refers to a scale of incredulity.
"I don't know what the hell is going on, but this definitely rates a ten on my What The Shit-o-Meter."
by Noctivagus February 25, 2005
A phrase made popular by Will Smith in "Men In Black",which can be used to decribe one's reaction to a strange situation.
Even After I smoked a bowl of marijuana during the movie "Eraserhead",it still ranks about a 9.5 on the weird shit-o-meter.
by Vagina Coastguard December 15, 2003
When you're not bothered about something
by LondonThis August 18, 2011