subs. (old).A filthy man. [From CHAT (q.v.), a louse, + Y.] English variants are CHATTY-DOSSER, CRUMMY-DOSSER. Amongst French equivalents may be mentioned un bifteck à maquart (Maquart is the name of a well-known knacker); un sale pâtissier (literally a dirty pastrycook); un kroumir; un gorgniat; un pégocier.
Adj. (common).Filthy; lousy. [For derivation, see subs.] A French equivalent is graphiquéitself a very telling, speaking, or chatty expression; also malastiqué.
1819. J. H. VAUX, A Vocabulary of the Flash Language. CHATTY, lousy.