unbandaidable
referring to a part of one's body which is unable to support the adhesives on a band-aid due to a natural curvature.
"I sliced the shit out of my elbow and the cut is unbandaidable because every time I bend my elbow, the band-aid flies off uselessly."
"I am so pissed that I cut myself shaving, my knee is completely unbandaidable."
"I am so pissed that I cut myself shaving, my knee is completely unbandaidable."