Full arm, inside and outside = full sleeve
From shoulder to elbow, inside and outside = half sleeve
Is there a term for getting the full length of the arm done, but only doing the inside portion (not the outside)
So, if I’m standing with my arm at my side you wont’ be able to see much ink, but if I lift my arm up it would be fully covered from my armpit down to the inside of my forearm/wrist.