noun
recrimination; mutual blame-shifting
Refers to a situation where people blame each other, often in a back-and-forth manner. Commonly used in the phrase なすり合いをする.
事故の後、運転手同士でなすり合いが始まった。
After the accident, the drivers started blaming each other.
政治家たちのなすり合いは、国民にとってうんざりだ。
The politicians' mutual recriminations are tiresome for the public.
Compound of なすり (from 擦る, 'to rub off, shift blame') + 合い (mutual action). The exact derivation of なすり is uncertain, but it is associated with the idea of rubbing off responsibility onto another.