A non-Layman term for the word 'lucky' ; it is also similar in both spelling and pronunciation top the word 'surreptitious'.
serendipitous
Not known by many, this character can be thought as a predecessor to Mickey Mouse.
Oswald the Lucky Rabbit
One of the first things that come to mind when you think of Tom Cruise.
Scientology
A part of the Greek alphabet, it is now preceded by 'what the'.
Sigma
What doesn't kill you
only makes you stronger
(2-part answer) You would think these words would be opposites, yet they burn from the same candle.
flammable, inflammable
This cartoon is now also known for its characters rapping via Artificial Intelligence.
SpongeBob SquarePants
Astrology has been given a somewhat bad reputation; this science that it is often confused with is the scientific study of the universe.
Astronomy
A form of oral posture training purported to improve jaw and facial structure; or the sound a cat makes.
Mewing
Pot calling
the kettle black.
Although often misspelled on police reports, it is used by and describes stoners.
paraphernalia
Kingdom of Hearts features characters from this series of characters.
Mickey Mouse
Astronomy is the scientific study of the universe and its contents outside of Earth’s atmosphere; this very similar science is the study of food.
Gastronomy
Rizz
You've made your bed
bow lie in it
Feel like you've heard this question before?
déjà vu
What's good? What's really good?! Maybe this [adult swim] show can tell you.
The Boondocks
Although it isn't about being popular, what this science is about has been around 1898.
Virology
A word that originated from scat singing(assumed from the string 'Skibbidy-be-bop'), it is now a common part of Gen Alpha slang.
Skibidi
in the last place you look.
This word is the closest word in the English language with a silent 'V'.
covfefe
The regular versions of these are often used for vehicle safety; the 'incredible' versions of these got their own toy series, cartoon, and video game on the NES.
Crash Dummies
Although only thought of as electronics, it can be labeled by any advance or invention.
Technology
A word used to insult or degrade something or someone that is not good but not bad.
Mid
It is
what it is