DPS
DPS stands for Damage per Second, Although it doesn't have to be measured in seconds necessarily. The term is most often applied to video games where damage is consistently or automatically dealt over a set number of seconds, although DPS can be extrapolated to represent how much average damage something can do in a given set of time, even in a turn-based roleplay setting.
Saying something is a DPS option is also slang for character classes, weapons, or builds that emphasize consistently dealing a lot of damage every player turn/in game tick.