This is a famous saying popularized in the Roblox game "Guts and Blackpowder".
Experienced players will usually shout this out in the online chat to signify that they have reached the end area of "Catacombes de Paris" which is a map from guts and blackpowder. About the map, there is an NPC known as Jean-Louise-le_petit-oui-oui-duboire (He's French). If you talk to the NPC it will trigger the end wave and it will spawn a bunch of zombies. They need to let the sappers of the team build barricades before talking to him so they will be prepared once the horde comes. (The horde is only activated if you talk to him so if you stay out of his vicinity you could in theory never let the horde ever spawn).
Experienced players will usually shout this out in the online chat to signify that they have reached the end area of "Catacombes de Paris" which is a map from guts and blackpowder. About the map, there is an NPC known as Jean-Louise-le_petit-oui-oui-duboire (He's French). If you talk to the NPC it will trigger the end wave and it will spawn a bunch of zombies. They need to let the sappers of the team build barricades before talking to him so they will be prepared once the horde comes. (The horde is only activated if you talk to him so if you stay out of his vicinity you could in theory never let the horde ever spawn).
French soldier 1 (A newbie): "We reached the end of the Catacombs! Oh who that guy, I'm gonna ask him for help!"
French soldier 2 (An experienced player): "Wait no! Don't talk to jean!
French soldier 1 (A newbie): "What? Why?
French soldier 2 (An experienced player): "Talking to him will trigger the horde, if we let the sappers build before talking to him we will have barricades already set up."
French soldier 1 (A newbie): "Oh, ok i understand..."
French soldier 3 (idk): *Talks to Jean either way*
Server: A votekill has been placed on French soldier 3.
French soldier 2 (An experienced player): "Wait no! Don't talk to jean!
French soldier 1 (A newbie): "What? Why?
French soldier 2 (An experienced player): "Talking to him will trigger the horde, if we let the sappers build before talking to him we will have barricades already set up."
French soldier 1 (A newbie): "Oh, ok i understand..."
French soldier 3 (idk): *Talks to Jean either way*
Server: A votekill has been placed on French soldier 3.
by Gutted mania May 2, 2024

A horrible friend that spreads life threatening rumours, takes control of you life and dictates your relationships.
Don't be such a Jean-Mari
Never have any type of a relationship with a Jean-Mari
Watch out for that Jean-Mari
Never have any type of a relationship with a Jean-Mari
Watch out for that Jean-Mari
by Yummypotato July 29, 2017

by Travelingmankc November 12, 2019

by Koniowo July 6, 2020

1. “Guys my favorite character is Jean Loo Pissoir from Date Everything”
2. “Ughhhh jean loo is a faggot and he’s so french”
2. “Ughhhh jean loo is a faggot and he’s so french”
by jean loo August 27, 2025

jeans that look really shitty and old with holes not intended to be in them something a dyke would wear
by thetruth79 June 26, 2016

A jean Edouard is a rich young parisian who live in 16th district. They usually wear a long scarf and a leather coat. U really want to hit them in the face when u see them in the metro.
by SuchAbougnoule May 19, 2017
