damn, that 8 ball is already gone!

We did an eight ball of blow and danced until ten the next morning.

i had 28 grams of cocaine and sold an eightball- i have 24.5 grams left

I cracked me open some eight ball to start the night off right.

Johnny showed up at the party with six 8 balls of meth. He kept one and shared it with everyone. His girlfirend took one and halved it with his brother. She then swiped a whole one for her friend. His depressed and jobless friend Bob then begged him out of one, he sold one to a guy who would pay him Thursday when he got a job, and he lost two in a poker bet. How bad is Johnny screwed?

the term "black balled" came from this instance.

to single out
or to be alone