noun
two-block haircut; undercut
A hairstyle where the sides and back are cut very short or shaved, while the top is left longer. Often associated with K-pop and trendy styles.
from English two-block
最近、ツーブロックにしたんだ。
I recently got a two-block haircut.
あの俳優のツーブロックがかっこいい。
That actor's undercut looks cool.
Variant with interpunct; less common but seen in some contexts.
From English 'two-block', referring to the two distinct lengths of hair.