Green’s Dictionary of Slang

(W.I.) bald; when used of women it is an insult.

1942		L. Bennett ‘Married’ in Jam. Dialect Poems 29: She rush [...] In time fe se Herman / Dah sey ‘I thou wed’ an put ring / Pon dry-head Emma han!
1979		T. Rhone Old Story Time I i: Dem little dry-head gal will drag you down!