Define long (centimeters or inches) and demonstrate that this is the precise measure intended by the Apostle Paul.
Does this guy meet your criteria?
Sure...no problem!
Long hair: 1) You think that you have "long hair." and 2) Others around you perceive that you have "long hair."
My criteria????
Contrary to the perception here on FR, I did not write 1st (or 2nd) Corinthinans.
Although it is more likely that I wrote John, 1st, 2nd or 3rd John and Revelation. It is still not true!