Green’s Dictionary of Slang

(US) a contemptible person.

1893		H.A. Shands Speech in Mississippi 43: Lickskillet [...] Used by illiterate whites to mean a contemptible or detestable person [DARE].
1958		Resp. to PADS 29: One day down here in North Carolina I listened to some one who was speaking disparagingly of another woman. ‘She’s nothing but an old lick skillet,’ she declared [DARE].