Rule 34

The 34th rule of the internet: If it exists there’s porn of it. “If there’s not, start uploading!”

1: Yo do you know if there’s any ____ porn?
2: yeah, it’s on Rule 34.

by already in use by s0me0ne else June 22, 2022

Rule 17

If there's an Map, there will always be an de_dust2 version of it

Hey dude, you finally made a de_dust2 version? Rule 17! you must also drop the A-site platform!

by epic deltarune shit November 4, 2025

48 Hour Rule

The rule for the amount of time sperm can stay alive in a person's mouth after oral sex.

Dana: Hi, Katherine, mind if I take a sip of your coke?
Katherine: Are you 48 hour rule safe?
Dana: Yep!

by futureactiveparticiple July 4, 2017

Etsy Rule

A rule that states that an item (typically clothing) is considered vintage if at least 20 years old. Following the requirement on Etsy: "For an item to be considered vintage on Etsy, it must be at least 20 years old"

"Yooo that jacket's sick, is it vintage?"
"I don't have a clue, it used to belong to my uncle who got it around 20 years ago."
"According to the Etsy Rule, your jacket is vintage"

by sheikhaladdin January 6, 2024

The arm rule

A way to know if you need a condom size bigger than medium. By measuring your penis to your arm, if it's bigger then you need a bigger size.

Hey dad what size condom should I wear? You should use the arm rule. Oh ok

by Lee Chandler May 26, 2017

offside rule

Something every guy will ask you to define when a girl will tell them they like football.

Amanda: i like football too!!
Bryton, willy and chad in unison: OH YEAH? tell us what the offside rule is then...
Amanda: leaves

by Yeri♡ May 13, 2023

Rule of Conversations

The Rule of Conversations is to only be the first to start a conversation with someone online or over text twice in a row lest you always be annoying them

"Have you talked to Lacy recently?"

"No I started conversations the past two times; if she really wants to put in effort in this friendship, she needs to start one now!"

"Ah, the Rule of Conversations, huh?"

by thetealord October 9, 2022