(n): a piece broken off or cut off of something else
(n): a hard brick used as a paving stone
(n): rectangular block of clay baked by the sun or in a kiln; used as a building or paving material
(v): clear out the cinders and clinker from
(v): empty completely
(v): turn to clinker or form clinker under excessive heat in burning
(v): undergo a change; become different in essence; losing one's or its original nature
Usage note on lapstrake.