(n.) One who, or that which, thumps.

anatomy argosy bark boat body bones bottom bucket carcass clay clod corpus craft derelict figure flesh form frame galoot hooker hull jumbo keel klutz leviathan lout material body mere wreck nervous wreck oaf ox packet person physical body physique rattletrap ruin ruins shell ship shipwreck skeleton soma thumper torso trunk tub vessel watercraft whale whopper wreck