Day 3

Day 3 or Mike Birbiglia is a running gag that Seamus and SlyFox said frequently during their gameplays. It means that the thing they're doing was long and boring.

Origin
After discussing ads they get on their videos a lot, Seamus, Nova, Sp00n, and Sly said that the Downey's challenge of Mike Birbiglia living in a window and saying "This is day 3" was the top. From then, the phrase stuck.

Trivia

 * Both Seamus and Sly have trouble saying Birbiglia.
 * Sly and Seamus were both looking forward to saying "Day 3 of Minecon" during their time in Las Vegas.