n. A disparity in the tolerance for vulgarity between generations or communities.
Then there’s the matter of the so-called "vulgarity gap." It has become a cliché to posit that millennials/Generation Y have an ease with crudeness that distinguishes them from their parents’ generation.
Nothing dates a Boomer so fast as to wince at expletives and vulgar humor. Yet a quick look at Adult Swim, Family Guy, and CollegeHumor.com quickly show that Millennials are perfectly comfortable with language and humor that makes my generation blush.
I live in the US and I occasionally discuss about the huge "vulgarity gap" between Italian and American. Things that in English are quite vulgar, are not so gross in Italian.