This is heartbreaking.
NYPD Officer Rafael Ramos is one of the men who was murdered on Saturday in Brooklyn, and he sadly left behind his 13-year-old son Jaden Ramos.
Following the horrible shooting, Jaden posted a message to his Facebook, saying:
Mostly because we had NO IDEA!
Ch-ch-check out the video (above) to see the Kill Bill star explain to Jimmy Fallon exactly how to say the unique handle.
All we can say is, we're going to stick with Lulu for short! LOLz!