It's called "Loot"

[Pandastirfry]

...Let's be real though xD

You're a Damage Dealer, you're not a Damage Per Second.

True, but... In most other games DD is used to shorten "Direct Damage" vs. DOT or "Damage over time"

FFXI is the only game I've played where DD meant Damage DEALER prior to that I only ever heard DPS Class or just the shorter DPS.