Skip to main content
Comes from the Old English verb for "shudder" (presumably the origin of the modern word "gruesome" as well; literally "shudder-some"). Grues are creepy, sinister creatures from the Zork series, the oldest and most influential of the old text-based adventure games. They're hardly ever seen because they despise light and only emerge in areas of complete darkness, where they prey upon adventurers and enchanters. Easily pissed off and vicious, they're repelled by even the faintest glow of light; meaning that a simple torch can be enough to keep the grues at bay. They're mysterious; short of their glaring eyes and sharp fangs-and-teeth, nobody knows what grues look like, exactly. They're known for their constant slaving and gurgling, and especially their nasty tempers.

In the game's feedback display itself, the grues were often a warning that a user should start looking for a light source... badly. "You have entered a dark area. You will likely be eaten by a grue" was a common description in the Zork adventure games; adventurers going underground would be wise to bring a good supply of oil for a lantern. Once the lights go out, the grues swarm all over you (ripping you apart before the game gives you a death message, like "Grues eat well tonight"). Infocom's official description of the "grue" (notice the lack of plural; it was unclear in the earlier Zork instalments whether there was only *one* grue, lurking as a sinister presence in the underground's darkness... or more then one) is:

"The grue, according to scholars of the Great Underground Empire, is a sinister, lurking presence in the dark places of the earth. Its favourite diet is either adventurers or enchanters, but its insatiable appetite is tempered by its extreme fear of light. No grues have ever been seen by the light of day, and only a few have been observed in their underground lairs. Of those who have seen grues, few have survived their fearsome jaws to tell the tale. Grues have sharp claws and fangs, and an uncontrollable tendency to slaver and gurgle. They are certainly the most evil-tempered of all creatures; to say they are touchy is a dangerous understatement. "Sour as a grue" is a common expression, even among themselves."
Text-screen: "You have entered the crypt. A hallway slopes downwards before you, leading into pitch blackness."
User #1 (types in): "head downwards"
Screen: "You walk into the darkness. You will likely surely be eaten by a grue if you don't find a light source."
User #2 (talking to first user): "Dude, you're gonna get eaten by grues..."
User #1: "Don't worry, I brought a lantern." *types in* "take out lantern*
Screen: "You left the crypt door open. A draft blows through, putting out your lantern."
User #1: "Oh shits, I knew I should've brought a hooded lantern."
User #2: "Quick, light it again!"
User #1: "Can't, man. No oil or matches."
Screen: "Another wind picks up and closes the crypt's door, blocking out the moonlight."
User #1: "Oh man, no matches or anything...? We are *so* fucked..."
Screen: "It's nice and dark in here. Just the way the grues like it..." *screen goes black, followed by nasty growling sounds*
User #1: "Son-of-a-bitch... remind me to stick a rock in the door to keep it from blowing shut next time."
Grue by Alhadis May 9, 2005
Words you can keep
A fearsome creature that dwells in the darkest corners of the great underground empire. It has a taste for adventurers. It's biggest fear is light- the feeblest of torches can keep a grue at bay
"It is pitch black. You are likely to be eaten by a Grue."
Grue by Bob Zygala December 5, 2003
Related Words
1) A slur coined by radical feminist Natalie Reed targeting violent, oppressive, transphobic cisgender people. In her words, "Short (read: infantilizing) for 'Gender Congruent'. (and also because you have a habit of killing us after it gets dark)". Created due to a) the misguided insistance of cisgender people that 'cis' and 'cisgender' are slurs when in fact they come from the Latin root cis- which serves as an opposite to the Latin word trans-, and b) because no such word of hate towards transphobic people has yet existed within the transgender community.

2) A monster in the classic video game Zork which lurks in the dark, eating adventurers.
"Wow, I almost wouldn't have known that you were a man!"

"Fuck off, grue."
grue by ccllaaiirree August 31, 2016
The combination of great and true.
It was hard to believe it was snowing in Tucson, but Monique assured her it was grue.
Grue by Britsy February 20, 2013
A type of pufferfish thought to have supernatural abilities to yield a better harvest.
I expect a better harvest this year, we have a Grue.
Grue by seeyasilla March 7, 2022

Grue breath 

Particularly bad breath that scares away females.
Ayy my nigga u aint gonna get any bitches with that grue breath
Grue is a state of enlightenment and simultaneous praise of Gru from Despicable Me. So Grue is essentially a superior version of So True, whilst being a fan base/cult.
So Grue by SG Jin March 27, 2022
More from Urban Dictionary
Acronym, meaning Too Long Didn't Understand
Similar to TLDR
Sister: This meeting was to discuss the rough draft of my essay, where we discussed the subsidiary questions I added in my rough draft. We also discussed the relationship between my main title and the real-life situations I chose to use in my essay. We discussed the structure of my essay as well, specifically the Math AOK section and how it relates to the contradiction of the title. This second meeting was particularly helpful in discussing the implications of my essay claims and how to apply the title across various areas of knowledge. There were many sections of the essay that could have been cut down in wordiness and the ways of knowing required further and more in-depth analysis.

Me: Woah! TLDU!
TLDU by L-Evans January 14, 2019
Word of the Day on August 30, 2026
the act of having anonymous sexual encounters with other men in public toilets.
Cottaging by greeef April 24, 2003
Word of the Day on August 29, 2026
Next