I was surprised finding the dict.really translates maccheronico with macaronic even from 1611 as: vernacular words in a Latin context with Latin endings . The term Macaronicus was coined in 1517 by Benedectine monk Teofilo Folengo in his "Opus maccaronicus".Well known is his parodistic poem"Moscheide" about war between flies and ants.
The modern dictionary writes, as you did:dog latin and macaronic.