ˈpot shot BrE AmE noun
[ Date: 1800-1900 ; Origin: pot + shot ; from the idea of shooting something to cook it and eat it ]
take a pot shot at somebody/something
a) to shoot at someone or something without aiming very carefully:
The boy took a pot shot at a pigeon with his air gun.
b) to criticize someone or something unfairly without thinking carefully about it:
He enjoys taking pot shots at the government whenever the opportunity arises.