Definitions by Sir Awesome-o

4:30 

the time that you drink milk-shakes.
it is the time right after 4:20 so you can drink Milk-shakes also, 4/30 is national Milk-shake day.

-"hey rob what time is it"
-"oh, it's 4:30"
-"man! its milkshake time!"

4:30 by Sir Awesome-o October 24, 2010