Getting her name and number, the two things found on a baseball jersey.
Tom saw her from across the club and was like "Cracka, I gotta get her jersey!"
Same thing as running a train, except a man (or a woman, if you swing that way) is passed around, eating everyone's pussies, rather than a woman (or a man, if you swing that way) is passed around, sucking everyone's dick. Often used as a form of hazing in sororities.
Tom ran a pink train last night; his tongue was so tired that he could barely speak today!