Common signs of LCPS are:
- Obstruction of views when gaming of any form (i.e. board games, video games, outside sports, etc.)
- General salt as a result of losing

- Believing they are the hottest shit ever when winning

- Tries desperately in an attempt to 1-up at everything
- Extreme asshole behavior

As the name implies, the symptoms of LCPS are exhibited by annoying, distantly related family members at family party/gatherings and it always results in the feeling of everyone at around the same age range (and higher in more extreme cases) being annoyed and wishing, or doing, physical harm upon that family member.

Across the world, LCPS is most common based on relative factors like holidays and the birthday's of family members. People with LCPS often experience flair ups and sometimes worsening symptoms (at the entire fault of their own).

If you or a love one has LCPS, please seek attention in a way that doesn't piss everyone off, or get a fucking hobby.
Jamal: "Me and another family member where playing Smash Bros and he smacked the controller out of my hand and I lost!"

Daniel: "That's a classic case Little Cousin at the Party Syndrome ngl."
by Holanimus Horsel March 05, 2024
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Party mayonnaise

Ejactulate
I had a crazy night and still have some party mayonnaise on my dress.
by Hithere! July 16, 2015
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party games 1

A gamemode on mincraft hypixel.
guy1-dude I'm so bored
guy2-lets play party games 1
guy1-wtf is that?
guy2-idk I thibk technoblade played it oncw
by me me hungy March 25, 2021
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italian house party

A funeral/wake held by or for Italian-Americans
Sorry to hear about your ma. She was a saint. When’s the Italian house party? I’ll send some flowers.
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kettle party

where a group of people all hit the bong togeather
hey brain do you want to come over and have a kettle party
by dirty frank 359 January 08, 2016
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Chess party

When 3 or more girls get together at one of their mother's houses and proceed to do the following activities in this order:
Play chess
Make a banana cake
Play animal jam
Dance/Workout to meme music
Pass out

Get drunk on water
Jenny: Hey Jayne let's go to your mum's and have a fucking chess party.
Jayne: No.
by ass_sukr October 11, 2018
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