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Seth's sister 

A really hot sister that all of Seth's friends have banged. Even Seth himself have tried it out.
Man did you see Seth's sister
Seth's sister by ghdjsjsn June 5, 2015

Seth's Theory 

Once a man cums inside of a woman, she becomes attached for life. This causes societal problems.
"Dude, she will NOT stop texting me, and calling me!"
Seth: 'did you cum in her?"
"Yeah"
Seth: "there's your problem bro" its all about "Seth's Theory"
Seth's Theory by TG brewing co. March 17, 2011

Seth's Law 

California's AB 9, anti-bullying legislation known as “Seth’s Law,” aimed at providing California schools with “specific tools” to prevent and address pervasive bullying and create a safe education environment for all of the State’s students.

“Seth’s Law” was named in memory of Seth Walsh a 13 year-old gay student from Tehachapi, California, who killed himself in September 2010 after facing years of relentless anti-gay harassment at school that officials effectively ignored.
dude - that kid is a fag and I'm gonna kick his ass.

Dude that kid is a kid - and I'm calling the cops to report your intent to violate Seth's Law - and you're a dickless-loser.
Seth's Law by joe293 June 13, 2011

seth's mangina 

Derived from a specific mangina. Similar to other manginas, but much dirtier and smellier. Upkeep is minimal and exposure to it's toxins can be deadly. Commonly used when one's response to a proposal is known before actually spoken and comes off as feminine or makes you infer that the speaker indeed has a mangina.
Example 1: I have to leave, i can smell seth's mangina...its close.

Example 2: Who wants to go boating? Your coming, don't ruin my sunny day, I can already smell seth's moist mangina.
seth's mangina by HugheC October 22, 2009

Seth's Harem

The most cancerous thing on the internet.
Hey! You in Seth's Harem?
Fuck no. Too cancerous.
Seth's Harem by Fuckboy77 October 2, 2017

Seth's Law 

Internet law which states, "Any conversation about gay marriage on an online forum will eventually end when someone mentions Sodom and Gomorrah, thus starting a new argument about biblical interpretation."
jeremy0: what do you all think about the new gay marriage decision in cali? I think it's a great step in the right direction.
b1go7ybastard: HASN'T ANYONE EVER HEARD OF SODOM AND GOMORRAH?!? ALL FAGGOTS ARE SINNERS! GOD SAYS SO! ITS RIGHT THERE READ THE BOOK
betterMinded: Sodom and Gomorrah is not a condemnation of homosexuality ...
EvenBetterMind: I invoke Seth's Law
Seth's Law by sumguysr August 5, 2008
More from Urban Dictionary

proper lad 

a lad that is such a lad that he is a proper lad
person1:did you see bob
person2: ya he was a proper lad
Word of the Day on October 29, 2026
The number of years you are still sexually active
While our lifespan is the number of years we will live, our healthspan is the number of healthy years we will have and our sexspan is is the number of years we will continue to be healthy enough to continue having an active sex life.
sexspan by Dr Kat April 21, 2022
Word of the Day on October 28, 2026
A lighthearted reaction upon receiving disappointing news of some sort. Usually something that isn't a particularly a big deal, esp. when it primarily affects someone else - sort of a mild schadenfreude. Sometimes doubled or tripled, and possibly said in a sing-songy voice for added comedic effect to imitate a muted trumpet, which is how the meme originated.
You didn't get any napkins with your takeout pork fried rice? Womp womp.
womp by 175623226 November 3, 2011
Word of the Day on October 27, 2026
When your wife’s boyfriend let you sleep past 8pm 😎😎
Wife’s boyfriend: You have 5 more minutes
Me: Poggers!
Poggers by Just_Charles April 14, 2020
Word of the Day on October 26, 2026

Oblication 

A vacation, feeling more like an obligation, that involves visiting or staying with family.
So Joe where are you taking the kids for spring break vacation? We are going on an oblication to Boca to visit my mother-in-law.
Oblication by kimmerr May 5, 2011
Word of the Day on October 25, 2026

Surf Dracula Syndrome 

A phenomenon in film/television series, most notably streaming series, where the main premise is drawn out to such a point that it takes an entire season or more to get the parts of the series the audience is actually interested in seeing.

For example, if a series is titled "Surf Dracula," a majority of viewers would tune in expecting to see Dracula surfing by the first or second episode. However, the entire first season would instead be tedious padding and backstory before finally ending with Dracula surfing in the last five minutes of the season finale.
I watched "Smallville" on Netflix the other day. Dude, it was ten seasons of filler before he finally flew! Major Surf Dracula Syndrome!
Word of the Day on October 24, 2026

Northstarring

Finding your way back to the truth by fixing on one verified fact and working out from there, the way you navigate by the North Star when everything around you is spinning.
Rumours were flying everywhere, so she went northstarring — one checked fact at a time.
Northstarring by Light Bearer October 22, 2026
Word of the Day on October 23, 2026
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