Beer:45 is when the clock runs past Beer:30 and you're still at work, dying of thirst.
RING RING-Hello? "Hey guy its beer:30 meet us at the bar!" No its Beer:45 for me bro the bossman made me work late. "Oh man that's balls."
a time of day, usually in the midst of ones' daily labors, that it becomes apparent that it well past time to no longer be in the midst of ones' daily labors
Is it beer:30 yet?
Dude, it's beer:45!