CebuanoGunnerThe person designated to pour drinks or the person who takes it upon himself to refill drinks.

Also Filipino. This is can be considered a twice borrowed word since we also use it in English.   Etymology: *Shooters* make *shots*, a gunner is a *shooter*   This guy isn't a waiter or bartender. In a drinking session, among family or friends, this person does the pouring and refilling. A single glass is shared, after one person drinks, the glass is refilled and passed to the next person. This is yucky to most people—share the germs, share the disease.   Added a video: