Broad term to desribe something that is enjoyable, sweet, or pleasing. Typically something thats taken for granted or straight out.
calagary kids spread it out to toronto and montreal far as i can tell...
generally used in a punky-emo kinda scene
That's such a deli bike. (refering to a bike that the sayer finds pleasant...)
That's deli. (that's real nice)
Johnny is such a deli. (type of sweet nice person)