Cha-ching! A whole episode about trivia and sizzling facts about shopping?! CHARGE IT. We buzz about the Lincoln shopping secret, 99-cent pricing, how supermarkets trick you into buying more, and where did those WACKY WAVING INFLATABLE ARM FLAILING TUBE MAN things you see infront of retail lots come from?! Get savvy with shopping in the department store quiz, and learn about how the iconic shopping cart came to be.

ALSO: Easter eggs, Brainiacs' Book Club

Put on your party hats and loosen up that belt for some cake because we're nerding out about parties this week! Festive facts and celebratory stories about party rituals, inventions and more: Shakespeare Goes to a House Party music quiz, etymology of party words, Dana finds the first examples of party balloons (and it's gross), Karen wants to climb the traditional ham pole of Spain's La Tomatina tomato-throwing festival, and Colin explores the weird ritual of having live birds fly out of pies. 

ALSO: GJB listener John wrote us an "Um, Actually..." theme song!

Keep your arms and legs inside the vehicle because we're about to blast you off to BRAIN TOWN with an all quiz episode. It's time to play another installment of "BRAD PITT?...OR LASER?" and those who miss E.L.V.I.S.' soothing metallic voice are in luck because he's back crooning his favorite opening lines of famous songs. Our minds melted during Dana's pregnancy/baby test, and Chris shows some love to the cat people with a quiz about fictional cats. And see if you can identify these earworm rock songs in reverse!

ALSO: Tia/Tamara Mowry mnemonic, Disney's secret unbuilt thrill ride

The left-handed burger? Trees that grow spaghetti? Celebrate April Fools' Day with us by learning some of the redonkulous trivia behind pranks and hoaxes. Colin regales us with the history behind iconic novelty gags like the Whoopee Cushion, Joy Buzzer, and the Snake Nut Can. Dana impresses us with the Mechanical Turk hoax, and Chris sets off to find out about the origin of April Fools. Karen emits some facts about fart humor (and an accompanying fart quiz), and are you up for the celebrity death hoax challenge?

ALSO: Colin's Takedown, Our Patreon Debut!