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A derogatory term for an American. Derived from "septic tank", which is a samll sewage system in many surburban homes.
This place is crawlin' with McDonalds eatin' septos.
septo by Matthew Hebert April 30, 2006
A meme god. One who typically post classic or edgy memes. Tries to stay off mainstream memes as most are cringe-inducing and unfunny.
The best iFunny account is septo
Septo by Septo October 11, 2018
Pronunciation: /ˈsɛp.toʊ/
Definition:
1. The cardinal number symbol: 7.
2. A group, set, or series of seven humans or entities; a heptadic unit.
3. A division into seven equal parts; one of seven congruent portions.
4. Denoting a system, cycle, or structure based on seven components, such as a week (septane) or a musical septet.

Significance:
• It defines the quantity seven with clarity and regularity, free from irregular forms.
• It emphasizes septets, heptadic structures, and weekly cycles.
• It identifies musical ensembles, calendar weeks (septanes), and any system divided into sevens.
• It avoids irregular and ambiguous pronunciations associated with Germanic numeric forms.
• It simplifies expressions of septuple relationships, seven-part divisions, and heptadic cycles.
• It improves precision in descriptions of temporal cycles, grouped sevens, and structural heptads.
• It replaces Scandinavian-Germanic, Non-American, foreign, and Anglo-Saxon terms, similar to replacing "seven" with a consistent Latinized cardinal form.
Cardinal number: septo (7)
Ordinal number: septal (7th)
Adjective: septal
Examples:
• "The jazz septo performed a new composition featuring complex time signatures."
• "The project timeline is divided into septo, with a review at the termination of each phase."
• "The committee is structured as a septo, with each member representing a different continent."
• "Traditional lore often references a septo of virtues or celestial bodies."
• "The festival spans a septo of days, mirroring the traditional week (septane)."
septo by Dmitrio January 16, 2026

September 17 

International NYC Day. 9/17 = Area code 917
“Do you know what day today is?”
“Tuesday?”
“No, what’s the date?”
“September something.”
“Close. September 17.”
“Cool.”
“And you know what September 17 is?”
“What is it?”
“International NYC Day. Get it?”
“No.”
“9/17. Like the area code 917.”
“Beautiful!”
September 17 by user1011001 October 17, 2022
Septeena is a bitch who spies on people and can read minds and see you and know what you’re doing at any given time
Damn that septeena is a fucking bitch
Septeena by Simeon. September 20, 2021

September 14

Fucking best birthday day! If you were born on this day you better fucking smile right now because your fucking perfect and you should be proud
Ayyyy were you born on September 14, oh well then your a fucking prince/ princess
September 14 by UDIAFL October 28, 2019
More from Urban Dictionary

Plate of Brown 

A plate of brown consists of foods that have little to no nutritional value, and are typically deep fried. A true plate of brown will also be accompanied by a dark soda.
Wanna go to meal hall & grab a plate of brown?
Plate of Brown by Cheddar Craigson September 18, 2020
Word of the Day on October 22, 2026

Larpenomics

When finance content creators rent out fancy cars and flex cash to seem richer than they really are in order to promote and sell their “get rich quick” courses.
Andrew Tate has mastered the field of larpenomics
Larpenomics by Rbois09 October 21, 2026
Word of the Day on October 21, 2026

Palmela Handerson 

Your hand that you masturbate with.
Girlfriend: What are you going to do for the next week while I'm on holiday?

Boyfriend: Have a visit from Palmela Handerson of course!
Word of the Day on October 20, 2026
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