turban
幞 centers on a cloth head covering: a turban, specifically a wrapped cloth worn around the head.
幞 combines 巾 (cloth) with 菐, which likely contributes the sound. The character is used for a cloth turban or headwrap.
The left side 巾 is a cloth, and the right side 菐 looks like a wrapped bundle. Picture a long cloth being wrapped around the head to form a turban.
For ホク, imagine a hawk (ホーク) swooping down and snatching a turban off someone's head: hawk -> ホク, and the turban flies away.