slaggin' meaning in English

When you are high/drunk off your ass and walking around like a bum acting retarded or just appear to be blatantly high or drunk. Or both. This term is popular amongst the Northern Virginia/D.C. area. Particularly Burke, VA.
> I smoked an L with my homies and walked around campus slaggin so hard.
> Just chugged a couple 40z and went slaggin downtown.