located at the back of a boat, ship, or airplane
The stern portion of a vessel.
At, near, or towards the stern of a vessel (with the frame of reference within the vessel).
Covered with a crust of dirt or grime.
Disgusting, repellent.
Of music, writing, etc.: lacking refinement; unmelodious, unmusical.
Difficult, thorny, troublesome.
Having scabers
Covered with scales or scabs; hence, very coarse or rough.