8 Ball is an eighth of an once (3,544mg or 3.6g) of speed, which is usually amphetamine or ethylamphetamine, but not methamphetamine. It can also refer to an 8th of an MAOI, such as D,L-Deprenyl, DL-Nordeprenyl, or D,L-Ethylnordeprenyl.
Fernando: Can I get an 8 ball.
Dealer: Speed or MAOI.
Fernando: Speed!
Here's an 8 ball.
*Hands Fernando an 8 Ball. (Product First)
Dealer: That would be $50.
Fernando: Here you go.
*hands Dealer $50.
Later.
*Fernando sniffs some of the 8 ball after measuring it on a scale. Trying 25mg.
*He cleans his room, does homework, then talks a lot to his friends.
Dealer: Speed or MAOI.
Fernando: Speed!
Here's an 8 ball.
*Hands Fernando an 8 Ball. (Product First)
Dealer: That would be $50.
Fernando: Here you go.
*hands Dealer $50.
Later.
*Fernando sniffs some of the 8 ball after measuring it on a scale. Trying 25mg.
*He cleans his room, does homework, then talks a lot to his friends.
by CognitiveFuel December 31, 2022
Get the 8 Ballmug. being under the influence of a substance that is extremely altering your mental and/or spiritual state
by McFly August 25, 2003
Get the tripping ballsmug. by Atdc19999 August 28, 2017
Get the Blue Ballsmug. My testicles on the holidays. Typically substituted for "jingle bells" when trying to come up with new Christmas songs.
"Jingle Balls, I slip and Fall, While Shopping at the Mall" ..... bad example, but it sounds way the hell better than the lousy original song that your teachers made you sing in the school Christmas recital.
by classyguy271 December 23, 2010
Get the Jingle Ballsmug. by the master of the universe May 23, 2015
Get the balls deepmug. 
The act of taking a foreign object, placing it at the rim of your asshole and having a male take his shaft and ram it up the rectum.
by karfighting September 27, 2009
Get the Musket Ballmug.