Forearm.
Only Neanderthals need to shave them.
That is OK you gave us a good laugh too.
Thanks for giving me the proper term It is called underarm or similar in other germanic languages, so my translation went a bit fast.
Anyway I have not done it (yet), the hairs on my forearm can reach up to one inch, and it has happened that they have touched object balls when I am placing my left hand bridge. Nobody else ever noticed or experienced that problem...?