noun
close haircut; short cut
Specifically refers to a haircut where the hair is cut to about 5 bu (五分, roughly 1.5 cm) in length, giving a very short, uniform look. Common in barber contexts.
夏は暑いので、五分刈りにしてもらった。
Because it's hot in summer, I got a close haircut.
彼はいつも五分刈りにしている。
He always keeps his hair cut very short.
スポーツ刈り is a short, sporty cut that is slightly longer on top than 五分刈り, often with a tapered look.
From 五分 (gobu, 'five bu', a traditional unit of length about 1.5 cm) and 刈り (kari, 'cutting, mowing'), referring to the length of the hair left after cutting.