unspecific term relating to something that somehow relates to being "back" (esp. 1 grinder, back tooth, molar 2 strip of meat off a (hind) leg 3 earmark 4 turf divot, surface sod (divot, the bottom half of which is peat, burnt at the back of the fire or used on the corners of a peat stack) 5 backhand & backstroke (in sports) 6 someone riding pillion etc)