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1.
An Oliver Dunbar is a person who is OD. Usually someone of a large stature who is quite burly. He also must at least drink one 40 a day and smoke at least 1 blunt with a grape dutch every 12 hours.
OD MOTHERFUCKER

" Hey look at that guy smokin a blunt. Woah he's drinking a 40 too! Wait, theres like 5 empty 40's next to him wtf?

" Hes just an Oliver Dunbar, dont worry."
by samuel wolff ringle March 09, 2009