110693 may seem like a random string of numbers, but it’s actually the release date of the film in European date format: June 11, 1993.
The “smart young lady” part is clearly referencing the “clever girl” scene in the original Jurassic Park, when Muldoon - the warden of the park - got mauled by a Raptor. Reddit user /u/lady_jaye posted to the /r/JurassicPark subreddit explaining that they’re “a bit of a SPAS 12-0-phile”, so when they saw it was added to Fortnite, they “decided to take a look at it to see the detail they put into the model.” Lo and behold, they found the following engraved on the side of the new Fortnite gun: The epic version deals 105 damage per shot while the legendary does 110, so if you’re close enough, the Pump Shotgun can finally one-hit-kill enemies again.
As part of the v6.31 patch, Epic Games released a new variant of the Pump Shotgun that strongly resembles the SPAS-12, a real life shotgun. There’s a lot of references in Fortnite to various popular media and with the release of the legendary Pump Shotgun yesterday, Epic has added another.