men's bath; men's section in a public bath
Refers to the men's bathing area in a public bathhouse (銭湯) or hot spring facility. Often contrasted with 女風呂 (women's bath).
The men's bath is on the right, and the women's bath is on the left.
In the men's bath of the public bathhouse, there is a large painting of Mt. Fuji.
Compound of 男 (おとこ, 'man') and 風呂 (ふろ, 'bath'). The reading おとこぶろ is a straightforward combination.