Day9 

Day 9 is a Caster for a widely popular Vlog for the video game StarCraft II. He is by and large the sexiest male nerd alive. He teaches people to "Be a better gamer" and does so in a persuasive, funny, and encouraging manner. To call someone a Day9, is a great honor to both the caster, and recipient of the compliment.

Dude, that's so Day9 of you.
Let's practice, and you can be my Day9.

I wish my professor was a Day9.

Day9 by Oakstaff January 10, 2012

Day [9]

A starcraft 2 veteran of many years who now plays stcarcraft 2. He's aboslutely hilarious and no matter what skill level you are at watching his dailies WILL improve your skill.

Dude! I just watched day 9's daily on drone timing! Now I ROFLSTOMP TEH NOOBEZZZZZ

Day [9] by Day [9] fan December 30, 2010

Day(9)

Victory Day (9 May), Germany surrenders to Russia.

Also a popular Starcraft Player and commentator.

Day(9)Sean Plottvictory day

Day(9) by Hegimon December 29, 2011

Jersey day 9/16/19 

Put this on your Snapchat story and who ever screenshots it get your jersey

Jersey day 9/16/19

Jersey day 9/16/19 by Dick cock jerry September 15, 2019