Made up words and Freudian slips
It's amazing when a simple mistake just takes on a whole new meaning because of the context of the moment. We were playing a game with some friends last night and one guy gave the clue of "It's a type of salami."
His wife blurted out "Promiscutto" (we can only assume she meant this) but we laughed for the next 5 minutes. The made up word was humorous enough but coupled with the idea that it was about salami, it added a new level that we could pick on her about.