Clinkers Definition & Meaning - Merriam-Webster
Definition of clinker (Entry 2 of 2) 1 or clinker brick plural clinker bricks : a brick that has been burned in the kiln to the point of becoming darkened or deformed . the shiny, burnt, misshapen bricks, known as clinkers, which are the unloved and usually unused outer layer of the firing process. When banged together, they make a clinking sound.