You’re reporting live from the scene. Put on the game headset, talk into the microphone, and get your teammates to guess who/what/where without saying any of the words on the cards. What’s the catch? the microphone jams your speech with a built-in delay. As you talk, you’ll hear your delayed voice through the game headset, making it harder to speak clearly.
For example, how would you report that "an alien is swinging kettlebells in a glass house" without saying any of those words – and in just 30 seconds – with your speech jammed?