Definition of: clinker

(kling′kər) noun
1. A thing that clinks, especially the earthy residue left by coal in burning.
2. A large, irregular porous fragment of lava.
3. A brick impregnated with niter and burned very hard.
4. A vitrified or over-burned brick; a mass of fused bricks.
5. A clincher.
6. U.S. Slang a A bad verbal mistake in a radio or television broadcast. b A wrong note in a musical performance. c A failure; flop.
— v.t. & v.i. To form or cause to form a clinker; become clogged with clinker. [<Du. klinckaerd, kind of brick]
CLINKER–BUILT
In shipbuilding:
A. Clinker–built.
B. Carvel–built.