[drstevej]

***Long hair: 1) You think that you have "long hair." and 2) Others around you perceive that you have "long hair."***

so 1 & 2 = long hair

whereas 1 but not 2 = hair length is OK
or 2 but not 1 = hair length is OK

As long as the person doesn't think it is long it is OK no matter what you or others think. Is that your point?

[Onelifetogive]

My mistake. Tried to make it too complicated!

How about: It's between you and God whether your hair meets His criteria.