potshot

Từ điển Oxford Advanced Learner 8th

pot·shot BrE [ˈpɒtʃɒt] NAmE [ˈpɑːtʃɑːt] (also pot) noun (informal)
a shot that sb fires without aiming carefully
•Somebody took a potshot at him as he drove past.
• (figurative)The newspapers took constant potshots at (= criticized) the president.
See also: ↑pot

Word Origin:
[potshot] mid 19th cent.: originally a shot at an animal intended for the pot, i.e. purely for food, rather than for display (which would require skilled shooting according to hunting rules).