low blow in British English
(ləʊ bləʊ)
noun
1. boxing
an unfair or illegal blow that lands below the opponent's waist
2.
a criticism or attack deemed to be unwarranted and unprincipled
It was a low blow, and possibly a political misjudgment to quash a rebellion thatcould humiliate the prime minister.
low blow in American English
1.
a blow below the belt, illegal in boxing
2. US
an unsportsmanlike or unfair action, attack, etc.
Image oflow blow
© Viacheslav Nikolaenko, shutterstock