Separate into groups of 5-7 people each.
Have each group sit around a table. Give a blank sheet of paper to each participant. Everyone writes a common catchphrase, such as "bigger is better" or "two fries short of a happy meal" at the top of their paper (any catchphrase works).
Everyone then passes their paper to the person on their left, who then attempts to draw a picture which communicates the phrase. For instance, for the phrase "bigger is better", someone may draw something like this: O > o = !
Once everyone has finished drawing their picture, they then fold back the top part of the paper (the part that had the phrase on it) so that the phrase is no longer showing, and pass the paper (with only the picture visible!) on to the player on their left.
That player looks at the drawing and writes what they think the phrase is. They then fold back the part of the paper that had the drawing so that only their new phrase is now showing, and pass the paper on to the left. Play continues around the table with each new person either drawing a picture of the phrase in front of them, or writing the phrase they think the picture in front of them represents, until the papers come full circle back to their original owners.
It's hilarious to see how phrases have changed!