singleplayer 

A person who drinks alcohol, smoke weed or using drugs alone.

Lukas is a great example of singleplayer. Yesterday, he did whole bottle of vodka alone.

singleplayer by Peter Sivacek April 22, 2008

cuckold singleplayer

The act of playing multiplayer in a video game without participating because your friend has progress in your world. Common in Sandbox games like Minecraft, Terraria, and Starbound.

Person 1: "Hey, wanna play some Terraria?"
Person 2: "Nah, I want to watch some TV."
Person 1: "Just boot it up and cuckold singleplayer. I want to finish my house!"
Person 2: "...I beg your pardon?"

cuckold singleplayer by Mr. Enderman October 3, 2022

single player sex 

Masturbation

Did you know masturbation is just single player sex?

single player sex by The_Pig January 12, 2019

Single player Russian roulette

One person has a gun and shoots oneself

1:Wanna play some •single player Russian roulette• .
2:Sorry mom says I can’t play without my uncle from Alabama.

Single player Russian roulette by ismelltheindoorsnow January 15, 2020

canadian single player

when a man masturbates with a condom on

lol just did a canadian single player it was pretty cool

canadian single player by dirtydanshow May 7, 2019

sex in single player mode 

Masturbation

I’m gonna go home and have sex in single player mode

sex in single player mode by Loki19634 January 15, 2019

Single player

A person who insists on playing alone even in deliberately social circumstances which prohibit or penalise lonesome players in order to make them cooperate and play together to advance (or make money off of them).

— I like games on facebook, but try to play them all alone.
— Oh, you're such a single player, bro.

Single player by urbansheep December 2, 2010