noun
close-cropped head; burr-like haircut
Describes a hairstyle where the hair is cut very short, resembling the spiky surface of a chestnut burr (いがぐり). Often used for boys' haircuts or military-style cuts.
夏になると、息子はいがぐり頭にする。
In summer, my son gets a close-cropped haircut.
彼のいがぐり頭がよく似合っている。
His burr-like haircut suits him well.