The Big Diesel is officially The Big Generous now ... 'cause Shaquille O'Neal just raised $2 MILLION for charity -- all by selling some unique NFTs of himself.
The NBA legend, along with NFT platform Notables, dropped the collection of the digital images earlier this month ... and TMZ Sports has learned they all sold out on Monday.
In total, they brought in a small fortune -- which Shaq and his camp say is all going toward The Shaquille O'Neal Foundation, which helps underserved youth in America.
The NFTs were pretty awesome -- each one featured unique depictions of The Big Aristotle ... showing the former Lakers superstar in different costumes with funny facial expressions.
Some had him in Lakers-colored gear, while others had him wearing a Magic-themed uniform. Some even showed him with donuts, pizza and Christmas lights.
Shaq's team says they're all "1-of-1 unique digital collectibles" -- and the hope is they continue to bring in money for charity going forward.
#Awesome