* A step-by-step account of how one got to the current topic.
From computing, where a program (usually with a bug) prints several lines of information explaining how it arrived at a condition it wasn't programmed to handle.
"...and maybe I should be working out more often. Uhh... Can I get a stack trace?"
"Sure. We were talking about how you were addicted to Netflix, then how you couldn't believe Blockbuster didn't read the writing on the wall, then you were talking about not remembering the last time you walked into a Blockbuster, and then mentioning the membership card is still in your wallet, and then you were reminded about your mortality because of how old that makes you."
"Oh, that makes sense. So, yeah-- you wanna go to the gym?"