a slab is a name for a car originated in H town texas. crawling is the effect when swangin. on other words, driving a car reeeeaaaalllly slowly because your drunk from purple drink.
"they dont know about sippin or, they dont know about slabs that crawl," Bun B in paul walls' 'they dont know'
ayon kay infamous aaron ika-20 ng Abril, 2006