Vulgarity gap is a disparity in the tolerance¹ for vulgarity between generations or communities.

 

粗俗代沟（vulgarity gap）指两代人或两个不同的群体对于粗俗行为的不同包容度。

 

It has become a cliché to posit² that millennials/Generation Y have an ease with crudeness that distinguishes them from their parents' generation. Millennials are perfectly³ comfortable with language and humor that makes their parents' generation blush. Similarly, things that in one language are quite vulgar, are not so gross in another.

 

说千禧年一代（即80后）与他们父母一代最明显的区别是他们对粗俗行为的见怪不怪，这已经不是新鲜的观点了。那些会让他们的父母脸红的语言和笑话，千禧年一代却觉得没什么大不了。类似的情况是，在一种语言里很粗俗的事情在另一种语言里却没有那么不堪。