A mild curse. Often believed to have originated from its similarity in spelling to "damn". In fact, however, it is an acronym for "Dingo Ate My Baby", the cry made by Australian women when their children are carried off and torn apart by the wild dogs of the Outback.
Similar to going postal, but usually involving a shotgun filled with buckshot instead of an uzi. May involve the disfiguring of a friend or associate by firing the shot at their face, usually after drinking lots of scotch.
Nigga, you disrespect me again and I will be going cheney on your ass.