Major Red Flag 

Not simping for George Washington

Person 1: “I love simping for Washington”

Person 2: “weird”

Person 1: “You don’t? That’s a major red flag.”

Major Red Flag by 69th_President July 5, 2022

Do you have a flag in your room? 

Meaning that you’re white and you have an American flag also implying that you’re a hillbilly <3

Person1: “Do you have a flag in your room?”

Person2: “No I don’t, what does that mean?”

Person3: “Dude, she’s implying the fact that you’re white.”

Do you have a flag in your room? by NYXLABETCH February 7, 2023

Assassin's Creed IV: Black Flag 

Assassin's creed IV: Black Flag is the 6th installment (7th if you count liberation) of the popular game franchise Assassin's Creed. It follows the life of the pirate Edward Kenway and his adventures in the west-indies.

Person 1: Dude, have you played Assassin's Creed IV: Black Flag?

Person 2: Yeah, I think it's great.

Assassin's Creed IV: Black Flag by Klein Duimpje December 7, 2016

Red Flag 

1) Traditional symbol of socialist resistance.

2) in an Orwellian reversal, also the song sung by Blair and his cronies at Labour Party Conference

Red Flag (song), Blair version:

We'll suck up to the ruling class
We'll fuck the workers up the ass
And just to show that we're sincere
We'll sing the Red Flag once a year.

Red Flag by annoyed anarchist May 28, 2004

lesbian flag 

There's two popular versions of the lesbian flag. One is with pink and red, and one is with pink and orange. There's controversy about what flag to use, but honestly, just use whichever flag you personally prefer and don't be rude to people just for liking a different version of the lesbian flag!

"Look, I drew the lesbian flag!"
"I drew it too, but mine is a different version."
"That's okay!"

lesbian flag by BrineShrimpy June 24, 2020

making a Japanese flag 

A much classier way of saying "on the rag", making a Japanese flag is the process of taking a white sanitary napkin and putting a big red blot in the middle of it.

Jacob: Dude, what crawled up Linda's ass today?

Robert: She's making a Japanese flag.

Jacob: Ohhhhhhhhhhh....

making a Japanese flag by tunnelr@ September 28, 2009

Perform the Flag Salute 

A sexual act performed with a prostitute. Typically done in Monte Carlo after a night of gambling.

I put my last few francs down on a prostitute
Who took me up to her room to perform the flag salute

Perform the Flag Salute by Excitable Boy_1024 November 30, 2020