A Chekov

1). Someone who screams way too much (TOS definition)

2.) A young person who is very intelligent (ST:XI definition)

Both definitions are based off of the Star Trek character of Ensign Pavel Chekov, USS Enterprise navigator.
1.) "Didi you see him during that scary movie? He was being such a Chekov. I couldn't hear right the rest of the night.

2.) That kid's a real Chekov. He's got a 4.0 grade in advanced physics.
by WannabeRomulan August 14, 2010
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Chekov's Army

A situation where everything or almost everything is important or a clue to something else.
Like the Chekov's Gun, but a lot bigger.
I remember when people didn't treat FNAF like a Chekov's Army.
by Temmie Attano November 12, 2016
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Chekov's Gun

The principle that every element introduced in a story should be necessary and used later.
"When it was said in Chapter one that Timmy's hamster used to only eat the tail fur of the Namaqua chameleon found in Southwestern areas of Namib desert. I knew it was Chekov's gun waiting to go off"
by DictionaryDecimator July 06, 2024
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What da Starship Enterprise officer performing role-call tells da fellow crewmember doing da tally-sheet when their youngest official shows up as instructed.
Spock: Our Russian-youth officer should be here about now --- ahhh, there he is walking in the door now, Scotty --- Chekov another name on the list.
Scott: Aye-aye, Mr. Spock.
by QuacksO August 11, 2025
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Chekov’s Chekov

When famous Russian playwright Anton Chekov is featured as a background character in the beginning of a film, just to be the most important aspect of the climax later on, or a twist villain.

this concept is purely theoretical and has never been seen
(example of a possible Chekov’s Chekov)
Protagonist: “please, have mercy!”
Antagonist: “it’s over, you cannot fight anymore”
Protagonist: “wait… is that… ANTON CHEKOV???”
Chekov: “and I have a gun
Antagonist: “NOOOOOO”
Chekov: “looks like the only useless element in this movie is ABOUT TO BE YOU!”
by Somy91 December 16, 2023
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Chekov's Dehydration Gun

If something is introduced at the start of a movie/game/TV show/episode that can easily handle the main conflict, chances are that it will never be used for that purpose.

This is named after a massive freak out Schaffrillas Productions had in his "Megamind vs The Doom Syndicate" review after Megamind stops the Go Fish Gang using the Dehydration Gun, but he didn't use it on the titular Doom Syndicate, even though the plot would've been wrapped up much quicker with it.
"The movie never says that the villains' powers are preventing them from being stopped by a simple gun!" "That, sir, is what we call a Chekov's Dehydration Gun."
by CherryBlossom91 March 23, 2025
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