graffmance 

A graffmance When two graffiti writers/artists go out and paint/write with each other and throw one another's Tags up

The writers Reser and Mable definitely have a graffmance

graffmance by Mcchickenwing September 29, 2017

graffaeces 

Graffiti using faeces as the medium

Man there is a load of graffaeces in the girls toilet

graffaeces by Nate_all March 15, 2007

Graffeace 

Graffeace is act vandalism, in which the participant takes dump in a highly inconsiderate location without permission of the property owner.

girl: "That Robbie is a serial Graffeace artist! Last night he took a dump on old man Thorns front door step. There was seriously Graffeaces all over the place!"

boy: "oh Word!"

Graffeace by Robbie Sea August 14, 2009