Nông Nghĩa is a name of a notorious
Facebook user who tells
extremely tasteless, anti-fun jokes. He jokes as he lives, insipidly and ignorantly. Hence the meaning of the slang, you can use ''Nông Nghĩa'' to describe a joke, or a person that is not, and
extremely not funny which tries to be so. Sometimes, it can be shortened as acronyms like ''2N'' or ''NN''.
Nông Nghĩa can be referred as either a noun or an adjective.