Ballin, is slang for either selling large quantities of drugs, turning a profit off of any activity where something is sold, being well off financially, or playing basketball well. Someone who is ballin is known as a baller.

The term ballin (technically ballin'...an abbreviation of the word balling) draws its origins from the illegal cocaine trade. On the upper rungs of the drug trade, dealers buy cocaine by the kilogram (kilo or key), and distribute to lower dealers in portions of an 1/8 ounce (known as an eightball, or ball). Therefore, a drug dealer who is ballin' is buying kilo's of cocaine at a bulk price, and selling eighth's of an ounce to lesser dealers at an inflated price.
1. He's ballin' coke all day, everyday.
2. Once I get my wood shop up and running, I'm gonna be ballin' cabinets.
3. Did you see that fat wad of cash? That dude is ballin'!
4. Those guys on the court are ballin'!
by Cyan Cincy August 31, 2005
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a) selling 8 balls or buying 8 balls to flip an extreme profit by selling by the gram

b) going really fast either in a vehicle, on foot, or anything with wheels. (short for hauling balls or hauling ass)

c) playing basketball

d) crying eyes out

e) now mistakenly misused by nearly everyone especially the kids on urbandictionary for a synonym of "living the good life", "living in wealth or riches", AND the worst of all "the act of being fly" which derived from the life of selling 8 ball's of cocaine on the street in order to make lots of money. ballers may sometimes live the good life with their riches and actin fly BUT for the most part many ballers only appear that way because they spend their money on new shoes and chains and may even eventually end up in jail. so all the new age wannabes who don't even know where the word came from use it for anything they can think of to describe something that is dope, cool, and/or awesome to them.
a) rick ross thinks he's ballin but he really isn't

b) i was ballin through that intersection

c) we were just outside ballin, shootin hoops

d) shaniqua was straight ballin when she found out her man was cheatin and playin her

e) i got some nice new air force 1 kicks bro, now i'm ballin
by Matt Huff September 25, 2010
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1)livin large.
2)money in the bank.
3)term used for meaning tight mother f'er.
We fly high, No Lie ,You know this (BALLIN!)
by Spider. December 20, 2006
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Tupac invented ballin back in his thug life days, Jim jones is a homo who cant come up with an original idea. Tupac is the greatest rapper of all time when Jim Jones is a nobody wannabe thug.
You other motherfuckers fallin,
While me and my mothafuckin thug niggas,
we STR8 BALLIN!!!!!!

11 year old white boy: Jim Jones is so cool he invented ballin!
Hip-hop head: Jim Jones is a fucking homo. Tupac invented ballin.
12 year old white boy: Whos tupac??
Hip-hop Head: only the greatest rapper of all time
by Hoopz August 15, 2007
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the only adjective used by teenage boys these days.
it can mean one of the following:

1. To ball. As in to actually play basketball

2. An adjective. Its impossible for guys to think of anything beyond the point of "good, bad, and ballin"
1. "Yo man, lets go ballin!!"

2. Dude, that is so ballin.

by taraaa October 03, 2007
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