Reverse Polish Notation

Name: Reverse Polish Notation Mug
Brand: Urban Dictionary
Price: 32.95 USD
Availability: InStock

Reverse Polish Notation not to be confused with Reverse Reverse Polish notation. It is Notation used for algebra that is easier for programers to parse. The alternative is to compute PEMDAS and that gets into abstract syntax trees. Since Reverse Polish Notation has a association with Stacks and Stack based programing paradigms it's usually found there.

Confused? If you are that's the point. Reverse polish notation was meant to be understood by people but it's still not as easy as pemdas. So that's why we use S-expressions or just pemdas.

Person A: Hey did you hear about that Reverse Polish Notation Calculator?
Person B: You living in the 1980s or something we use pemdas.

Example of Reverse polish notation:

9 2 3 + *is equvalient to (2 + 3)* 9

Reverse Polish Notation by Richard565 May 29, 2024

Words you can keep

Purple Patch

To describe coming into something good, coming into good luck and or good times.

Like walking over small green hills in the countryside then coming across a purple patch of flowers, thus it being unique and out of the ordinary.

I hit a real purple patch.

The other day this good thing happened unexpectedly then I was lucky with this, it was unique, I hit a real purple patch.

Purple Patch by Ralph Shitstorm October 27, 2020

Word of the Day on September 5, 2026

yub nub

(Ewokese) Freedom!

And dying in yo' bed many years from now, would ya be willing ta trade all da days from dis here day ta dat fo' one chance, just one chance, ta come back here as young men an' tell our enemies dat dey may take our lives but dey will never take our freedom ... YUB NUB!

yub nub by rotjrem November 4, 2010

Word of the Day on September 4, 2026

dirrty

1. Meaning nasty, sexy, filthy. Popularized by Christina Aguilera.

2. Used usally as a close friend in hip-hop slang.

1. Wanna get dirrty
It's about time that I came to start the party Sweat drippin' over my body
Dancin' gettin' just a little naughty

2. Sup Dirrty? Haven't seen you in a while.

dirrty by Minty November 30, 2003

Word of the Day on September 3, 2026

Coyote Ugly

1. Place

The Bar came before the movie. It is an awesome bar where the girls know how to party and make you feel okay about giving up your money, drawers, bras, and dignity.

2. Movie

A story about a Jersey girl following her dreams, aided by working at this bar in New York.

3. Situation/Person/Decision

See other definitions - waking up next to someone so ugly you'd rather chew your arm off than wake them up.

1. Yo, Coyote Ugly is my favorite bar! I got whipped, stripped, drunk, and danced on the bar all before 7 o'clock!

2. Hey did you see Coyote Ugly? It actually has a plot!

3. Ugg I woke up to Coyote Ugly this morning!

Coyote Ugly by jerseycountry March 8, 2009

Word of the Day on September 2, 2026

Literally 1984

Used in response for when someone promotes/advocates an event or idea that is perceived to support "too much" authority and/or government control.

Often used jokingly as a over-exaggeration in political talk.

Can also be used in response to a ban or mute in a forum site or online chat.

Steve: I think that the government should regulate businesses more
Bob: Literally 1984!

--User1 has been permantly banned--
User2: You cant ban my friend like that! Literally 1984!

Literally 1984 by ke1 July 7, 2021

Word of the Day on September 1, 2026

Back when I lived in upstate new york

A meaningless, unimpressive, self-serving introduction. An indicator that the story about to be shared will be pointless and dumb.

Back when I lived in upstate new york, I also had to park on the street - on two occasions, we got enough snow, mixed with just the right plowing, that my car was lifted off the ground from so much snow being jammed underneath it.

Back when I lived in upstate new york by NDcent December 14, 2010

Word of the Day on August 31, 2026