Meaning of 背比べ in Japanese

It seems that your search contains the following:

Definition of 背比べ

せいくらべ(seikurabe) · せくらべ(sekurabe) 【背比べ】

どんぐりのせいくらべ(dongurinoseikurabe) 【どんぐりの背比べ ·団栗の背比べ】

(exp) having no outstanding characteristics; to all seem about the same; bragging competition ("pissing contest") concerning matters of little importance; height comparison among acorns
こういう流れになると結局、どんぐりの背比べになる。
Once things start going this way, in the end they'll all be much of a muchness.

こういう流れながれになると結局けっきょく、どんぐりの背比べどんぐりのせいくらべになる。

Once things start going this way, in the end they'll all be much of a muchness.