Rule 38 

If it exists, it's probably in Japan.

Truman: Raw horseflesh Ice cream?
Yu Min: No Way!!! That can't be real.
Truman: Rule 38.
Yu Min: Topo!

Rule 38 by Elite CAT October 31, 2008

Rule 38 

Rule 38 is a prison offence in which someone is masturbating in public.

He got locked up because he kept doing a rule 38 in front of the female prison guard.

Rule 38 by Cereal KiIIer June 22, 2010

Rule 38 

Analogous to Rules 34 through 37, Rule 38 states that if something exists, there is a plushie of it, or there will exist a plushie of it. This is not a constant, but an inevitability; i.e. not all things have plushies, but come the end of time, they will.

"Half-Life 2: Episode Two had those really scary Hunter enemies; now they have them as plushies."
"Christ, Rule 38."
"WTF is rule 38?"
"It's like all the other Rule 3x's, but about plushies."

Rule 38 by Flatterland October 15, 2008

Rule 38 

One of Gibbs's rules from NCIS: Your case, your lead.

Tony: Aren't you going to interview him?
Gibbs: This was a case you worked when I was retired. Rule 38 DiNozzo.

Rule 38 by rizzy6 March 7, 2017

Rule 38 

If there is a type of porn, there is a website for it.

J. Have you seen that pillow porn website?

B. There is no such fucking thing.

J. Rule 38

Rule 38 by Krow1125 October 28, 2008

Rule 38 

if there's a thing. there'll be a movie

Sonic's movie, battleships movie even fuckin Dora's movie rule 38

Rule 38 by Cursewordremasterer December 10, 2021

rule 38 of the internet 

Anything that can be turned into porn will be turned into porn

Make sure to know rule 38 of the internet so you know that even your pets,elderly,and even your trees aren't safe.

rule 38 of the internet by JarlBatman September 27, 2015