Used in terms to someone having verbal diarrhea (chatting to much) or chatting shit (telling lies). The acknowledgment of the lies or the constant talking comes when a person says 'lets clean that up' and follows it with a hand gesture of cleaning a table. Used as an insult. First used in Newcastle, England.
'Sarah was chatting some shit today, after a while it got so messy, it got to a point where i had to be like....Lets clean that up!'