Here's a quick lesson from your favorite Nickelodeon shows -- SpongeBob SquarePants, Henry Danger, The Loud House, Game Shakers, Teenage Mutant Ninja Turtles, Nicky Ricky Dicky & Dawn, The Thundermans and more! YAD SDRAWKCAB YPPAH!! That’s backwards for 'HAPPY BACKWARDS DAY!!’ Do you know how to spell backwards? Well, it's time to learn! KCUL DOOG!!:
Watch more of your favorite shows and stars on Nickelodeon, Nicktoons, TeenNick, The Splat and Nick Jr.!
More Nick: Nickelodeon USA Gets In The Game To Give Kids All Access To Super Bowl LI!
Follow NickALive! on Twitter, Tumblr, Google+, via RSS, on Instagram, and/or Facebook for the latest Nickelodeon News and Highlights!