100 Words Every The Big Bang Theory Fan Should Know

No.	Term	Definition
1.	Apartment 4A	Sheldon and Leonard’s home base.
2.	Apartment 4B	Penny’s apartment across the hall.
3.	Astrophysics	Study of stars, galaxies, and space.
4.	Bazinga	Sheldon’s catchphrase after a joke.
5.	Bongo Solo	Howard’s awkward talent showcase moment.
6.	Brawl in the Hall	Fight between Sheldon and Kripke.
7.	Caltech	Workplace of the main scientists.
8.	Cinnamon	Raj’s tiny dog companion.
9.	Comic Center	Store where the gang hangs out.
10.	Comic-Con	Fan convention the group attends.
11.	Darth Vader	Iconic Star Wars villain referenced often.
12.	Degrassi	Show mentioned in pop-culture chats.
13.	Doctor Who	British sci-fi series they love.
14.	Doppler Effect	Physics concept used in a song.
15.	Dungeons & Dragons	Tabletop roleplaying game they play.
16.	Eidetic memory	Sheldon’s near-photographic recall.
17.	Einstein	Physics legend frequently cited.
18.	Emmy	Award the series later won.
19.	Engineering	Howard’s field, mocked by Sheldon.
20.	Excelsior	Stan Lee’s signature exclamation.
21.	Fanboy	Obsessive pop-culture enthusiast.
22.	Feynman	Physicist referenced by the group.
23.	Flash	Superhero often discussed and costumed.
24.	Friendship Agreement	Sheldon’s rules for being friends.
25.	Gag reel	Outtakes and bloopers from filming.
26.	Gothowitz	Howard’s mother’s last name.
27.	Green Lantern	DC hero referenced in debates.
28.	Groot	Guardians character mentioned by fans.
29.	Hawking	Famous scientist Sheldon idolizes.
30.	Higgs boson	Particle central to physics jokes.
31.	Howard Wolowitz	Engineer, astronaut, Bernadette’s husband.
32.	iCarly	Show Sheldon watches with Amy.
33.	Indiana Jones	Adventure hero referenced repeatedly.
34.	Insomnia cookies	Late-night snack run staple.
35.	Joystick	Gaming controller often in scenes.
36.	Jupiter	Planet used in astronomy talk.
37.	Justice League	Superhero team referenced by group.
38.	Kirk	Star Trek captain often compared.
39.	Klingon	Star Trek alien language and culture.
40.	Kripke	Barry, Sheldon’s sarcastic rival.
41.	LARP	Live-action roleplay they try.
42.	Leonard Hofstadter	Experimental physicist, Penny’s husband.
43.	Lightsaber	Star Wars weapon in nerd talk.
44.	Magic: The Gathering	Card game played by the guys.
45.	Marvel	Comics universe they constantly reference.
46.	Mensae	High-IQ club Sheldon mentions.
47.	Mom	Mrs. Wolowitz, unseen but iconic.
48.	Mormon	Religion tied to Amy’s backstory.
49.	Mystic Warlords of Ka’a	Fictional game they obsess over.
50.	Nerdvana	Peak geek happiness moment.
51.	Newton	Scientist referenced in physics banter.
52.	Ninja	Costume and pop-culture staple.
53.	Nobel Prize	Top science award won in finale.
54.	OCD	Sheldon’s compulsive tendencies, joked about.
55.	Officiant	Character who performs a wedding.
56.	Orbit	Path of planets; frequent metaphor.
57.	Pajama party	Amy’s bonding night with the girls.
58.	Penny	Waitress-turned-sales rep, main character.
59.	Physics Bowl	Competition episode with rival team.
60.	Pictionary	Game night that sparks conflict.
61.	Professor Proton	TV scientist idol for Sheldon.
62.	Quantum mechanics	Physics field central to plots.
63.	Quark	Particle often mentioned in dialogue.
64.	Raj Koothrappali	Astrophysicist with selective mutism.
65.	Red Sweater	Sheldon’s signature clothing style.
66.	Rock-Paper-Scissors-Lizard-Spock	Expanded game to resolve disputes.
67.	Roommate Agreement	Sheldon’s contract for living rules.
68.	Schrödinger	Cat paradox often referenced.
69.	Sheldon Cooper	Brilliant, rigid theoretical physicist.
70.	Shiny Trinket Maneuver	How Sheldon distracts Penny.
71.	Soft kitty	Lullaby sung when someone’s sick.
72.	Spock	Star Trek icon and logic model.
73.	Star Trek	Franchise core to many jokes.
74.	Star Wars	Space saga referenced constantly.
75.	String theory	Sheldon’s specialty, debated often.
76.	Super Asymmetry	Sheldon and Amy’s Nobel work.
77.	TARDIS	Doctor Who time machine prop.
78.	The Cheesecake Factory	Penny’s original workplace.
79.	The Flash	Hero central to cosplay episodes.
80.	The Hulk	Marvel character referenced in banter.
81.	Thor	Marvel hero used in comparisons.
82.	Time machine	Prop built for a prank.
83.	Tissue	Sheldon’s gift-wrapping protocol item.
84.	Trains	Sheldon’s lifelong obsession and hobby.
85.	Uber	Ride service used in later seasons.
86.	Unicorn	Mythical creature in nerd humor.
87.	Urkel	Sitcom nerd referenced as comparison.
88.	Vulcan	Spock’s species; logic ideal.
89.	Vulcan salute	Spock’s hand gesture used by fans.
90.	Wheaton	Wil, recurring nemesis-turned-friend.
91.	Whiteboard	Where equations and plans appear.
92.	Wookiee	Star Wars species like Chewbacca.
93.	X-ray crystallography	Science method mentioned in passing.
94.	Xbox	Console used for gaming sessions.
95.	XKCD	Geek webcomic referenced by fans.
96.	Yeti	Cryptid referenced in geek talk.
97.	Yoda	Star Wars mentor quoted often.
98.	You’re in my spot	Sheldon’s claim to his seat.
99.	Zack Johnson	Penny’s sweet but dim ex.
100.	Zazzles	Sheldon’s cat experiment name.