1. "Common sense" is
something that is no longer "common"; it
may have been bred out by rednecks, white supremacists, haters, or plain old "common folk". Maybe it is just ignored as an attempted
stand against authority, maybe it is a product of anti-evolution, an anti-sensible change brought about by genetically inept breeding.
EX: Lacking common sense is exemplified by
kids run around with sharp scissors or knives, walk in the middle of the road and FULLY EXPECT you to move out of their
way - as if the sidewalk needs to be defined on this site before they can figure out that it is to be used by them, and that VEHICLES use the road, stupid
parents that don't care, and don't care to know where their
kids are lack common sense, drinking and driving. buzz driving, playing Russian Roulette, acceptance of
Ebonics as a dialect or urban language is due to a lack of common sense by those who decided it was easier to give up than to teach their students properly, etc... The list goes on and on...
EX 2: It used to be common sense to do a courtesy flush but now when you walk into a bathroom stall (stall) you can't even breath b/c some iggit dropped a bomb sized turd into the toilette and did not flush it. Common sense is something that used to be prevalent in
society, as a whole, but through
time has diminished greatly for
whatever reason.
EX 3: A great example of the lack of common sense is some person looking this definition up as "common cents", as I have heard it referred to, and ironically, I have seen it spelled that way.