Code Speak
The type of code consisting of dots and dashes that the gang often communicates with - for example, when Will is possessed by the Mind Flayer or when they learn to communicate through the lights in Season 4
Morse code
Jake Connolly's character Derek Turnbow goes from this descriptive adjective to this one in Season 5 (both are alliterative to his name)
Dipsh*t to Delightful
Eleven and Kali call him Papa
Dr. Martin Brenner
Holly Wheeler's nickname for Henry Creel aka Vecna is from this Newbery Medal-winning book
Bonus points if you can name the author
'A Wrinkle in Time' by Madeleine L'Engle
The radio tower/station in Season 5 is called...
WSQK aka The Squawk
Murray Bauman's code name in Season 3
Bald Eagle
Max Mayfield offers to be this role in the party (Will is the Sorcerer, Dustin's the Bard, El's the Mage...)
Zoomer
008's powers
Casting illusions, making people see things that aren't there
In Season 2, Lucas and Mike fought over their Halloween costumes because Mike assumed Lucas would be Venkman
Ghostbusters
Singer of the song that shares a name with the alternate dimension, now known as a Wormhole!
Diana Ross ("Upside Down")
Argyle and Jonathan's favorite way to unwind in Season 4
The hairspray that Steve uses to get his signature style (name the celeb)
Farah Fawcett
Name one of 2 doctors who have taken over for Dr. Brenner
Dr. Sam Owens (Season 2, Paul Reiser)
Dr. Kay (Season 5, Linda Hamilton)
Back to the Future
Suzie and Dustin's classic duet in Season 3 is to what song?
The Neverending Story
The names for the 2 groups of kids at the Battle of Starcourt Mall (not including Murray, Joyce or Hopper)
Scoops Troop and Griswold family
Cherry (NOT strawberry)
The tank Eleven uses to get her powers back in Season 4 was part of a secret project, inspired by an opera, named...
The Nina Project
Lucas reads this Steven King & Peter Straub novel to Max while she's in the early stages of her coma at the end of Season 4
The Talisman
Eddie Munson shredded this song on his electric guitar to ward off the demobats in Season 4
"Master of Puppets" by Metallica
The number that Suzie gave Dustin to hack the Russian safe
Planck's constant (6.62605015 x 10^-34)
Nancy Wheeler has a poster of this actor in her childhood bedroom
Tom Cruise
A loose inspiration for 'Stranger Things' and a clandestine CIA program
Project MKUltra (The Montauk Project okay too)
The Dungeons & Dragons creature we haven't seen manifest from the Upside Down but that is portrayed in Will's Season 4 painting
The Thessalhydra
'Stranger Things' originally had this single word title and this East Coast setting
Montauk, New York