My brothers and sisters and I used to play it, and now my own kids do. Mad Libs are when you have a story pocked with blanks, and you invite people to offer random parts of speech.
Noun?
"Cheese grater."
A sentence later you ask for a
verb.
"Diagnose."
Number?
"Sixty four."
Then the reader includes them in the text of the story and the hilarity evolves as unexpected words pop up.
"When I planned to propose I bought her a cheese grater. It was the biggest one in the store and I knew she would diagnose it. I asked the jeweler how many carats it was and he said sixty
four."
Sometimes I toy with the idea of composing Mad Libs for spouses. When the evening discussion erodes to complaining, or silence, you bring out a page and fill it up.
Compliment?
"Your eyes are the brightest blue ever."
Affirmation?
"Thank you for putting in a long day at work. You look beat."
Good memory?
"I
still love thinking about our trip to the beach. It was really great."
It may be as stilted as a script but eventually I could gain enough momentum to do it without a queue card.