Statement, usually stupid, sarcastic, and/or indicative to a sexually moronic male who uses cheap shots to incite feminine ire. Word play on "dead man walking", i.e., referencing the near-status of said tried, convicted, and soon-to-be-dead male. If said male wished to live, he best STFU.
Guy: (Come-on line)Soooo...ya hear that new blonde joke with the...
Girl: (Interrupting): (yells): Dead man talking!
(All other women in the room lean out or off of their cubicles/workspaces/barstools with a deathglare on their faces)