What does Atrium swan dive mean?

Atrium swan dive meaning in Urban Dictionary

In law school (or most grad schools), the term for what you're feeling like performing during finals, scuba diving off the atrium. Pretty much all legislation schools have multistory atriums focused in the middle of a high tension environment.Many law schools have scuba diving programs after finals as a stress reliever. Regrettably, many atriums lack an adequate scuba diving share.