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Ruh Roh was originally one of the many iconic Scooby-Doo sayings but has been turned into a phrase used at times of wrongdoing or mistake to make people laugh or lighten the mood.
Ruh Roh we're behind on our rent!

Ruh Roh I farted in the hand dryer

Ruh Roh The Po-Po
Ruh Roh by bored.exe August 29, 2022
Word of the Day on October 31, 2022
A Hanna-Barbera canine cartoon saying for "Uh-oh," beginning with THE JETSONS' Astro (1962) and continuing with Scooby-Doo in the Seventies.

Astro tended to speak a kind of English except that words with beginning consonants were replaced with an "R," and "R" was inserted in front of vowels.

Scooby-Doo was less fluent, but was given "Ruh-roh" as a kind of running gag when things were going bad.

Now "Ruh-roh" is sometimes used as a jocular trope where dogs are concerned, as in a recent news story about a dog who was accidentally released by Air Canada from his cage at the San Francisco airport. Rough meaning: "I goofed" or "I'm in trouble."
"Astro, if you don't stop that you're going to be in big trouble."

"Ruh-roh."

"Alright Astro, you asked for it, no outdoor privileges all weekend."

"Raw, Rorge!"
Ruh-roh by al-in-chgo October 11, 2013
Comedy replacement for "uh oh", Scooby Doo style.
Guy 1: OH SHIT MY HOUSE BURNED DOWN!
Guy 2: RUH ROH!ahhahaha
ruh roh by remright September 6, 2003
Scooby Doo's comedic mispronunciation of "Uh Oh", it is also a play on potentially dire situations, usually starting with a minor event that could escalate into something huge.
North Korea just shelled a South Korean island? Ruh Roh!

There is a small leak from the dam? Ruh Roh!
ruh roh by sanjuro_kurosawa November 26, 2010

Ruh Roh Raggy 

A common phrase used by Scooby Doo or many others, often to show fear or intense emotions.
Ruh Roh Raggy Fred is jacking off to among us again!
expression used in place of "uh oh"
derived from the popular cartoon show, Scooby Doo
Kelly: "That girl hooked up with Shaniqua's boyfriend, she's gonna get the shit kicked out of her during lunch today."

Amanda: "RUH-ROH."
ruh-roh by chiquitaLOCAA January 3, 2009
More from Urban Dictionary

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
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