(For the men) When you are done fingering a girl (in the vagina, in particular) you have her spread her legs so that you can write your name either on the side of it or just above it using with her... juices as ink and your finger as the "pen." So then you have officially "registrated with that vagina.
Kanye West's follow-up to The College Dropout includes tracks such as "Diamonds (From the Sierra Leone)" as well as "Gold Digger" Feat. Jamie Foxx and many other great tracks. This album is surprisingly largely produced by Jon Brion. Late Registration released on August 30th 2005 is an instant classic like the last Kanye album.