蝸か牛ぎゅう角かく上じょう

noun

trifling fight; petty conflict between small parties

A yojijukugo derived from a classical Chinese fable about a battle fought on a snail's antenna, used to describe a trivial quarrel or a conflict between insignificant parties. Literary and idiomatic.

• 彼かれらの言いい争あらそいは、まさに蝸か牛ぎゅう角かく上じょうの争あらそいだ。

  Their argument is nothing more than a petty squabble.