shitting match

countable idiomatic slang vulgar

(countable, idiomatic, vulgar, slang) A pointless competition, dispute or conflict, often over some trivial matter.

Japanese Meaning

くだらない論争や無意味な争い / 些細な事で起こる意味のない衝突や競争

The meeting quickly devolved into a shitting match over who forgot to send the email, wasting everyone's time.

会議はすぐに誰がメールを送るのを忘れたかを巡るくだらない言い争いに発展し、皆の時間を無駄にした。

Sense（1）

(countable, idiomatic, vulgar, slang) A pointless competition, dispute or conflict, often over some trivial matter.

shitting matches

（ plural ）