Seth's Mom 

Someone who looks VERY attractive smothered in an entire bottle of mayo. BEST SLOPPY sex ever. :D

Man, she looks almost as good as Seth's mom last night

Seth's Mom by Joe Brick November 21, 2010

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