The southern part of Davis, CA; a city located in Nor-Cal near sacramento. The "sketch" part of Davis is located here, around the taco bell, and imfamous Motel 6. "Souf D" is a term of endeerment used by young enhabitants of south davis, and is often used as an umbrella term for anything awesome, or a suitable answer for any question.
Kid1 "Where's that party at tonight?"
Kid2 "it's in south D, near pioneer park"