YOLO y'all
You're young
Yell
Yay
Yo
Yarp
Yield, yellow
Yogurt, yummy
Y? There may be a scientific answer but it won't suffice. At least to me.
Y me? Y not me?! - never have asked myself that one. WOW.
"But are procrastinators truly unproductive? In most cases, the exact opposite is true. They are people who not only get a lot done but have a reputation for getting a lot done. They don't have neat desks or even neat desktops on their laptops. They spend a lot of time playing catch-up. But they are likely to be creative and on the whole amiable. After all, if you tend to keep people waiting, it makes them crabby; it doesn't pay to make things worse by being crabby yourself."