While the origin, and even the meaning of the word is unbeknownst to man one can only assume it means something wonderfull due to the drooling and pleasant gurgling noices humans of the female sex produce upon hearing it.
Man: So, what does Njaard actually mean?
Female: *gurgle*
slip of the tongue perhaps,
Those idiots who drive around in a ridiculously raised pick up truck, making a top heavy vehicle even more top heavy and unstable
A:*gah*
B: "Whats the matter"
A: This dam prickup is blinding me.
B: Stupid thing's, as if there lights weren't blinding enough as it is.