What does "brickbat" mean?

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).

What is a synonym for "brickbat"?

Common synonyms include: affront, aspersion, atrocity, bola, bolt, boomerang.

//ˈbɹɪkbæt// noun, verb

noun, verb ·Uncommon ·Advanced level

Noun

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).
"[S]he sēt [sent] a brick back after him & hit him on þᵉ back, […]"
2
blunt criticism wordnet
3
A piece of (sharp) criticism or a (highly) uncomplimentary remark. figuratively
"I beſeech ye friends, ere the brickbats flye, reſolve me and your ſelves, is it blasphemy, or any vvhit diſagreeing from Chriſtian meekneſſe, […] for me to anſvver a ſlovenly vvincer of a confutation, that, if he vvould needs put his foot to ſuch a ſvveaty ſervice, the odour of his Sock vvas like to be neither Musk, nor Benjamin?"
4
a fragment of brick used as a weapon wordnet

Verb

1
To attack (someone or something) by swinging or throwing brickbats (noun noun sense 1). transitive
"We had two boys arrested, both colored, for brick-batting a colored woman in her house. They were sent to the chaingang for 12 months each."
2
To assail (someone or something) with (sharp) criticism. figuratively, transitive