Definition of "cinderblock" [cinderblock]

• Made of cinder blocks (adjective)
• Alternative form of cinder block. (noun)

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• "I recently learned that Billy has been putting on a one-man science show, which includes laying down on a bed of nails and having someone break a cinderblock on his chest with a sledgehammer."
• "Admittedly, the sternum is a tough one, but if you can break a cinderblock with the heel of your hand, you can probably crack somebody's sternum, and if This Person were really so knowledgable about assassins and fighting, s/he would know that."
• "In the cinderblock hallway behind the stage there was a pay phone and a stack of milkcrates piled at the approximate height of a chair."