Question: I think it originates from MMORPGs, particularly World of Warcraft. I think it refers to more than one thing. Did it really originate from MMORPGs? Does it mean one thing exclusively, or can it mean something else ina different context?

What does the term DPS mean?

Answer: 
DPS as a person: A dedicated damage dealer class and specialization, such as an Arms Warrior or Shadow Priest.

DPS as a measurement: The amount of damage done every second over a period of time (5 seconds, 1 minute, an entire boss fight). Typically seen in damage meters like Details.

**Examples of usage:**

*LF3DPS*: Looking for 3 damage dealers/ Need 3 dedicated damage dealers.

*Your DPS is low*: The rate of damage you're outputting is low
Damage
Per
Second

Yes, you are using it correctly.