brickbat

Meanings

1. A piece of brick, rock, etc., especially when used as a weapon (for example, thrown or placed in a sock or other receptacle and used as a club).
2. A piece of (sharp) criticism or a (highly) uncomplimentary remark.

1. To attack (someone or something) by swinging or throwing brickbats (noun sense 1).
2. To assail (someone or something) with (sharp) criticism.

Etymology

The noun is derived from brick + bat (“a bit, piece; specifically, part of a brick with one whole end”). The verb is derived from the noun.