According to all who knew me at the time
  1. The joke: "Very exciting night for me. I was at my girlfriend's house, she's Mexican, and her mother served enchiladas. What a culture shock. I'd had pieces of enchiladas before. (Pause) But this was... (Pause) The whole enchilada."
  2. Post-game analysis: this required a lot of words and a totally pointless lie about my personal life to land on a pun that didn't even lead to anything remotely comedically illuminating or joyful to picture or imagine.