どんぐりの背比べ

どんぐりのせいくらべdongurinoseikurabe

expression · noun

1. having very little difference between one another
2. being much of a muchness
3. being more or less the same
4. height comparison among acorns
5. pointless competition (between two equally unimpressive parties)
6. pissing contest

Study it in Yanamino