Welcome to the Matrix
While it might not precisely replicate the iconic cable protruding from the back of Neo's head in The Matrix, it's possible that this individual encountered licensing limitations. Regardless, this tattoo features a super-realistic 3D depiction of peculiar blue cables descending into the base of the person's skull. This image would certainly make anyone do a double-take.
At the very least, this ink can be described as somewhat unnerving, evoking a sense of curiosity and intrigue. Furthermore, should the need arise, the wearer can grow out their hair to conceal it, although the enigmatic blue cable descending their neck would remain a distinctive feature.