In general, a referrence to a perfect being, usually male. The standards for 'naryans' vary from person to person, and is used in a romantic context.
'omg i loke him he's sooo naryan'
'my perfect guy would just basically be naryan'
'i wish my boyfriend could be more naryan'
perfect male who is well endowed.
damn did you see that guy he is naryan standards, i wish my boyfriend was more naryan.