pulling a jack: passing out after imbibing or inhaling a small amount of illegal or legal narcotic.
Man, landrith is pulling a jack tonight, i think he pissed himself, and hes passed out.
(jacks passed out in the back of the van snoring)
..troy-"damn, jacks asleep"
..landrith-"yea we should get him home"
..ben-"jack wake up its time for a bong hit"