Top definition
What the majority considers absurd or irrational.
If say an exotic dancer, currently employed in a gentlemen's club, were to bring a legal suit against a customer on the grounds of "sexual harassment", that would be considered to be ludicrous.
by nethcev! April 28, 2004
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Jul 15 Word of the Day
The safeguarding of Earth and other worlds from biological cross-contamination (i.e. billionaires with too much time on their hands).

Also known as “planetary protection.” Planetary protection / quarantine “reflects both the unknown nature of the space environment and the desire of the scientific community to preserve the pristine nature of celestial bodies until they can be studied in detail.”

There are two types of interplanetary contamination. Forward contamination is the transfer of viable organisms from Earth to another celestial body. Back contamination is the transfer of extraterrestrial organisms, if such exist, back to the Earth's biosphere.
Billionaires are having a dick swinging space race while the earth experiences record breaking heatwaves that cause sea creatures to literally cook inside their shells. We need planetary quarantine.
by monkeylabor July 14, 2021
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2
(adj.)(adv.) Extremely Ridiculous, absurd, or irrational. characteristic of insanity or complete nonsense.

The movie Spaceballs is Ludicrous.
Sandurz: Yes, sir. Prepare ship for light speed.

Dark Helmet: No, no, no, light speed is too slow.

Sandurz: Light speed, too slow?

Dark Helmet: Yes, we're gonna have to go right to... ludicrous speed.

*gasp*

Sandurz: Ludicrous speed?!? Sir, we've never gone that fast before. I don't know if this ship can take it.

Helmet: What's the matter, Colonel Sandurz, chicken?

Sandurz: *into intercom* Prepare ship... prepare ship for ludicrous speed. Fasten all seat belts, seal all entrances and exits, close all shops in the mall, cancel the 3-ring circus, secure all animals in the zoo....

Dark Helmet: *taking the intercom* Gimme that you petty excuse for an officer.

*Sandurz sits down and buckles up frantically*

Dark Helmet: *into intercom* Now hear this, ludicrous speed....

Sandurz: Sir, hadn't you better buckle up.

Dark Helmet: Aah, buckle this... *shouts into intercom* Ludicrous speed, Go!

*Spaceball-One takes off past Light Speed and Ridiculous Speed and goes to Ludicrous Speed*
by Cunjo November 15, 2004
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3
The final level in Unreal Tournament 2004 after massacring a ton of people in a short amount of time.
Wow that was wierd! After I crushed 25 people in a row the screen suddenly said:

L U D I C R O U S
by Passm June 05, 2005
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4
Being so foolish, silly and laughable that it’s amusing for others. A group of ludicrous people is the best company you’ll ever get. They always make the greatest parties, and they are not afraid to make a fool of themselves.
“I had the best time last night, the people I met were so ludicrous!”
by March 02, 2021
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