This has no real importance its more of an interesting fact so feel free to delete.
The word HIp comes from the early 1900's in opium dens were the users would smoke the opium and lay on their sides/hips fr hours on end and then would have soar hips, so people were said to be "on the hip" if they used the opium
The word JUNKIE comes from after WW1 when soldiers returned, addicted to morphine, but had no money to buy it so they would collect scrap metal for money to buy morphine, and they were called junkies because they collected junk.
The more you know....