Summary:
Markiplier and his friends, including Bob, Wade, Tyler, and Ethan, attempt the "Don't Laugh Challenge." They take turns trying to make each other laugh using props and funny voices, with Mark occasionally breaking into laughter. The challenge involves humorous impersonations, silly jokes, and playful banter among the group. Laughter ensues as they engage in their comedic antics, with some moments causing uncontrollable laughter.
Here are the key facts extracted from the text:
1. Markiplier is hosting the "Don't Laugh Challenge."
2. Participants include Bob, Wade, Tyler, and Ethan.
3. They have props for the challenge.
4. There's a scoreboard for tracking laughter.
5. They're trying not to laugh for two minutes.
6. Various references to other YouTubers and inside jokes are made.
7. Wade laughs due to a kazoo and spits on Mark.
8. Ethan makes a reference to his acne.
9. Tyler imitates Mark and Ethan.
10. Wade and Bob do a humorous skit about being old and having low-hanging breasts.
11. Various humorous impersonations and jokes are made throughout the video.