A fork of Rural Dictionary
Talking badly with a cocky attitude; to talk back. Traces back to late 2004 when AdamQ and Christi were making rules for Christi's Canesty (pronounced kane`stir). Derived from "cocky attitude" and "bad mouth".
Example 1: -AdamQ: Ummm... FAIL! -Christi: Are you cockmouthing me? Refer to rule number 1, please. Example 2: -"OMG, that bitch was cockmouthing me behind my back!"