Blue Vulture

Noun.

The term used for any consumable item found in a public space. examples include a half-full bottle of soda, a sealed pack of cigarettes, or an untampered Hershey's kiss.

The name is in reference to the scavenger perk featured in the call of duty franchise and how ammo packs in the games usually show a blue vulture icon above them if you have the perk equipped.

hold on a sec, I see a blue vulture. someone forgot their soda can. mine now!