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Robbie's dog 

Southern slang term for difficult or "well-hard".

Orgin: Robbie Jackon's dog (Wellard) from UK TV series Eastenders
There's no way I can do it, that's just Robbie's dog.
Robbie's dog by Ricky Ironhammer January 29, 2019

Murphy's Dog 

One who can give it, but can not take it.
I heard you tried to punch someone when you were rat arsed Saturday night, missed and fell over and cut your head. Ha ha ha

You can talk, what about the time you got a hiding and ended up in A&E with stitches left, right and centre. Ruining christmas for everyone... Ha ha ha

Thats not funny ya prick, I nearly died....

Ah, shut up ta fuck, Your Murphy's dog.

pavlov's dog

In 1927, Ivan Pavlov experimented with his dog on the subject of psychological training--specifically conditional stimuli and response. He found that when he rang a bell each time before he fed his dog, the dog no longer salivated in response to the food, but to the bell.
A conditional response is when you're trained to respond to something such as Pavlov's bell, as opposed to using simply your reflexes.
pavlov's dog by Trychta September 20, 2005

Fry's Dog moment 

A reference to a single episode of of the animated Matt Groening show, Futurama. The episode in question has a decidedly heart breaking and emotional ending that comes from nowhere. The term refers to getting caught off guard by an unexpectedly sad event that you didn't see coming.
I was talking to Sandy the other day on our date, and she was just kind of chattering on, but then she started talking about her Dad dying of Cancer. It got to me man, total Fry's Dog moment.
Fry's Dog moment by Gueop June 21, 2011

That's dog 

"That's dog" is a direct translation of a French expression "c'est chien" which is used normally as a third party comment to describe the fact that someone is being unfarely treated, or is said of a comment that is very nasty about something, someone.
Did you see this? A man walked to a begger and spit in his cup, That's dog!
That's dog by Elise500 July 9, 2011

walt flanagan's dog 

One of the most powerful creatures known to mankind. To claim that someone is somehow better than this canine is to claim that they are exceptionally gifted in that specific field.
Man, that bastard's faster than Walt Flanagan's dog
walt flanagan's dog by fanboy January 1, 2004
More from Urban Dictionary

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
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026

Slop Grenade

When someone uses AI to generate a large document, slide deck, or piece of code/software and tosses it over the fence for you to deal with.
Chad: Hey Brent I sent you the new backend API change to review, it’s only 100 files changed.

Brent: he just tossed me a slop grenade
Slop Grenade by Joe Squid September 28, 2026
Word of the Day on September 29, 2026
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
After we broke up, he was floxi to me.
floxi by Dr. Geek May 13, 2009
Word of the Day on September 28, 2026
NYC people who migrate north to Quahog, RI to see the leaves in the fall.
New York and everyone from there can fornicate themselves with an iron stick.
leafers by ss++ February 8, 2005
Word of the Day on September 27, 2026
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