noun | as·ets uhn·der man·ij·muhnt
The metric that separates the big swinging dicks of the financial world from the plebs with a Robinhood account. AUM is the total value of all the tendies a fund or firm is 'managing' (read: gambling with). It's like a dick-measuring contest, but with money instead of meat.
Example
"Bro, did you hear about that new crypto hedge fund? They've got like $10 billion in AUM!"
"Yeah, well, my AUM is like $500, if you count the loose change in my couch cushions." 