To have every sexually transmitted disease at once. It thus neutralizes the infected from the affects of the various diseases. However, whoever they have sex with will die instantly.

Jeff has Serio Syndrome. He fucked Deb last night and she immediately died.

Serio Syndrome by Ridwiz October 24, 2012

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Serio 10

n. I swear to god times 100

i like that girl serio 10

Serio 10 by dylannnnntizzzzzy September 30, 2018

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Serio Pedo

Literal translation "serious fart"
It's equivalent in English is "real shit"

Serio Pedo, you don't have no salsa, but you're serving tacos? or
My car just broke down dude, serio pedo.

Serio Pedo by Cheymez May 24, 2017

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Serio 10

Serio is a solemn oath of absolute truth and loyalty used among close friends — a verbal contract that what you’re saying is real and must be believed. Serio 10 is the elevated, unbreakable version of that oath. It’s the equivalent of saying “I swear to God,” but on a deeper, more sacred level — a level 10 declaration of truth that cannot be taken lightly.

Once “Serio 10” is invoked, the statement must be 100% true — no exaggeration, no trolling, no lies. Breaking a Serio 10 is considered “abuse”, and doing so severely damages your credibility within the group.

Breaking it once leads to a loss of trust. Repeated violations result in social devaluation, exclusion, and eventual ostracization. Within this code, Serio 10 is sacred — if you use it, you better mean it.

Think of it as a verbal blood pact. You either honor it, or you’re done.

A: “Bro, I didn’t hook up with her. I swear.”
B: “Don’t play with me. Serio 10?”
A: “Serio 10.”
B: “Alright then. I believe you.”

... Later B discovers that A didnt actually hook up with her

B: "Abuse. Straight abuse. You're done."

Serio 10 by bmankobe August 22, 2025

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