Saint Shaquille O'Neal's Day

"I mean, I literally cannot believe you celebrate a day called Saint Shaquille O'Neal's Day."

- Cisco Ramon on Saint Shaquille O'Neal

The Saint Shaquille O'Neal's Day is a national holiday celebrated on Earth Nineteen.

History
At some point a nation-wide holiday was established in the name of Saint Shaquille O'Neal on Earth Nineteen.

Awareness through Multiverse
On Earth One Cisco Ramon has become aware of the holiday's existence and was surprised because Saint Shaquille O'Neal's doppelgänger from Earth One Shaquille O'Neal is not known for being a Saint.

Trivia

 * Judging by Gypsy's noting about Santa Claus just after Cisco name-dropped the holiday it might be presumed that Saint Shaquille O'Neal's Day is a winter holiday not unlike Christmas.

Behind the scenes

 * In real life Shaquille O'Neal is a famous basketball player as well as occassional actor and singer.
 * Being a known fan of DC Comics, O'Neal sports a tattoo of Superman symbol. He also appeared as a DC character Steel (John Henry Irons) in an eponymous 1997 movie and as a fictionalized version of himself in a DC animted universe TV show Statick Shock.