"He tampered in God's domain." Explanation Said, in a somewhat garbled manner, of Bela Lugosi's scientist character. Became a running gag in other MST3K movie scenes where other mad scientists would meet their end.
"How much Keefe is in this movie?" "Miles O'Keefe!"Explanation A play on the starring actor's name.
The Sampo! Explanation The Sampo is a Finnish mythological device, the purpose of which is completely unknown (most translators claim it creates wheat, gold, and salt... but that's just a blind guess).
The words that Joel and the bots sing to the music at Lemminkäinen's wedding..
Watch out for snakes! Explanation An obviously and oddly dubbed-in line seemingly only put in the movie to make some stock footage of snakes fit. Joel and the Bots get quite confused at who the heck is supposed to be saying it.
Sing it with me now! "This is the song written for the train chase, this is the chase, Rocky and Ken. HE TRIIIIIEEEDDDD TO KILL ME WITH A FORKLIFT...! Explanation A song sung to the not-so-thrilling chase music of the movie.
"Ha-ha-ha-ha-ha-ha, a-ha-ha-ha-ha-ha-ha-ha-ha... YOU'RE STUCK HERE!"Explanation The incredible Mood Whiplash when the Captain of the defense force blows up at Ken, whose invasion force killed his wife and kid.
Gamera vs. Guiron
Gamera is really neat, he is filled with turtle meat, we'll be eating Gamera! Explanation Lyrics made up for the Gamera Theme Song.
"Sing whenever I sing, whenever I sing." Explanation A lame song that the mechanic main character sings throughout the movie and inexplicably becomes a smash hit. Would be brought up in repetitive music moments in other MST3K films
"They took out the Hitler building!" Explanation Actual World War II footage was used in this movie's battle scenes, including a shot where a building with a large Hitler poster is displayed. Kind of a tasteless thing to put in your movie.
"He learned too late that man is a feeling creature and because of this the greatest in the universe..." Explanation Peter Graves' ending speech. Was repeated several times at the end of the show to kill time.
"Rock climbing, Joel." Explanation An incredibly long and boring scene of the leads climbing a canyon wall. Would be brought up in other MST-ings as a sign that things are getting repetitive.
The show's treatment of Pod People spawned the famous "Potato Soliloquy". Explanation Crow does an Emo Phillips/Elephant Man impression while Trumpy the alien checks out the things (mostly pets) in the kids room, apparently looking for something to eat.
And [puts thumb and index in the OK position] IT STINKS! Explanation A main character's sarcastic reaction to a song performed in the movie. Would be used as a call back to any appearance of the A-OK hand gesture. Where the movie was filmed at, the OK position is also the equivalent of flipping someone off.
Trumpy, you can do stupid things! Explanation Trumpy the Alien's magical powers are... unimpressive.
Beastmaster? Ringo? Axel? Sinead? Chief? McCloud! Explanation Joel and the bots reaction to people shouting out the names of whoever they're looking for in the scene is to rattle off pop-culture references, ending with a reference to McCloud
Are pumas known for their whining?Explanation Puma Man is constantly outclassed by his Native American sidekick.
Every great hero just wants to be left alone!
I get this way when I sense danger. Explanation Mentioned once in the start, then followed throughout by a number of times where Puma Man notably fails to sense impending danger. Tom Servo is happy to point it out.
"Your weapons have no effect on me!" Explanation The Prince of Space seems to take a little too much glee in No Selling any enemy attacks.
Each! Of! You! Will! Enter! A! Space! Capsule! Explanation The scientists the Prince rescues constantly ask him "What?" whenever he tells them what to do, leading Tom to say "Oh, for crying... EACH! OF! YOU! WILL!..."
We like it very much.
"Heeeeeeh heeeeeeh heeeeeeh!"Explanation Villain Krankor's distinctive laugh, described on the MST3K web site as "like a Buick not turning over."
"BAKAWWWW!"Explanation Krankor also bears an unfortunate resemblance to a giant chicken.
This is absolutely fascinating... Explanation The female lead doesn't quite add the emotion to the line that you might expect. Her odd accent doesn't help either.
TUSK! Explanation Over the tribal chants that play during the credits, Mike and the Bots sing an impressive medley of songs that fit the rhythm, tied together by shouts of TUSK!, a reference to Fleetwood Mac
You is a wurwilf/warwelf/worwilf/waerweilf! Explanation No character in the movie seems to give "werewolf" the standard English pronunciation.
"Where did the rubber band go!?!?" Explanation A marriage counselor uses a stretching rubber band to illustrate the psychological difference between two kids not ready for marriage. When the thing snaps, those kids seem genuinely confused as to what has happened.
A Date With Your Family
"Dad, I had a feeling today." "Well, DON'T, son." Explanation Mike and Tom supply the dialogue for a silent conversation Dad and Junior have.
Why don't they look?Explanation After a train hits a car, killing the main character due to his negligence, the train conductor laments "Why don't they look?", leading to Tom's response, "You're deep, Ernie."
Robot RUMP?!? Explanation The title screen for the short features a robot painting the title onto a garage, but when it fades in, only "Robot Rump" is shown, leading to  before the "u" and "s" are painted on, something which the bots are quick to point out.
Gumby was nude!
This way we don't have to hire illegal immigrants.
"Dinobot has spoken. My rigid grill structure is coming in on your unprotected cargo door." [[labelnote:Explanation]]A Transformer fan accidentally conflagrated a "Dinobot Has Spoken" line with this quip given during an oddly suggestive trucking scene. Ironically, Dinobot'svoice actor DID say this line on request.
We have to mention... Crow: You know you want me, baby! Explanation Crow's attempt to making a catchphrase in order to sell shirts he made with the phrase on them.
Nobody understands me baby ... I'm the wind!
Mike broke the Hubble! Mike broke the Hubble!Explanation :Tom and Crow taunt Mike for his physics-breaking destruction of the Hubble Satellite
DEEP HURTING...DEEEEEEEEEP HURTIIIIIIIING~
SANDSTOOORM ... SANDSTOOOOOORM
In a more meta sense, the show help popularize the concept of MSTing itself, though it's been around for years before the show.
Speaking of which, MSTing made "The Long March" palatable, and "The Long March" led to its own fountain of memes, such as (X despite the name), in a reference to "Ashley Montagu (Jewish despite the name)".
All over the world! Explanation Joel did this as an homage to standup comedian Michael Floorwax, who himself became a frequent callback on ESPN's MST3K-like show Cheap Seats. M&TB closed the loop by appearing in Cheap Seats' season two premiere and mocking the hosts' dancing abilities.
Think about it, won't you? Thank you.
You're not my real father! Explanation Crow's random reaction to Joel saying "I love you guys"
Push the button, Frank.
I am the button.
Jack Perkins and Peter Graves even more than they were before.
Jack Perkins' main feature, according to this show, is his tendency towards trailing off his monologues with long rambling anecdotes—Perkins has never done this in real life, but to hear MST fans talk you'd never know it.
During Perkins' tenure on Biography, he did have a tendency to be overly fawning toward whoever was the subject of said biography, no matter how small their contribution to society at large. He could make you believe Touch Connors was as important as Abraham Lincoln.
"Crow Syndrome" which is far more common in MiSTings than it ever was in the show. Crow (or some other character, what matters is that it's always the same one) will make an especially insensitive or off-color joke and will be reprimanded with a shout of "Crow!"