A nickname used for cigarettes, it is used when you, as a smoker, do not want those around you to know you smoke, are not comfortable saying cigarette or if you're talking about smoking when around parents or other authority figures. Mostly associated with Malboro brand cigarettes.
(Parents in the room) "You wana go out for a davie?"
"That class was so long I need like eight davies"
"Drive me to the store I need a pack of davies"