The English are basically the Americans of Europe. Loud, obnoxious, arrogant and full of sh*t

Seppo being the derogatory term for Americans, the English being stereotypical tea drinkers = Tea Seppo
That's Nigel ranting on about Brexit again and how England is so great, he's such a Tea Seppo
by Corolla54 January 13, 2021
A check carried out to make sure someone isn’t a seppo, whether it be of mind or of body.

The term was originally coined in “a group that anyone can join except if you’re from the US” on Facebook, but it has since been adapted by groups and pages across Facebook.
“I love my 17 Walmart guns”
Woah mate, we are going to need a seppo check over here
by Xtank-47 November 22, 2020
A check done to ensure someone isn’t a seppo, whether it be of mind or body.

The term was originally coined in “a group that anyone can join except if you’re from the US” on Facebook but has since been extended to multiple other groups across the social media platform.
“Did you just say you don’t think guns in schools are bad? We need a seppo check over here!”
by Xtank-47 November 22, 2020
A check done to ensure someone isn’t a seppo, whether it be of mind or body.

The term was originally coined in “a group that anyone can join except if you’re from the US” on Facebook but has since been extended to multiple other groups across the social media platform.
“Did you just say you don’t think guns in schools are bad? We need a seppo check over here!”
by Xtank-47 November 22, 2020
.Äntligen en cirkel som ser ut som om jag ritat den. Det är inte en blob det är en Seppo-cirkel
by gruntar February 17, 2021
Slang for separatist, used by monarchists as a slur against Americans
Those seppos don't even like tea
by sunshinerain November 18, 2022
Gets all of the girls and has an black van with text on the side that says "Free candy!"
Me: There is a van with a sign that says Free candy!!
Friend: Yea, Seppo must own it..
News tommorow: Two kids have dissapeard..
by Onnihater February 1, 2019