Have a Flag 

to be claimed "not available" for dating-but not in an official relationship.

Joe: "Wanna' get a some dinner and a movie on Friday?"
Jill: "Not on a date- I Have a Flag."

Have a Flag by BirdVery October 8, 2008

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

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

Have a six flags day 

As an employee pretty much it means go f*ck yourself.

Guest: “Why can’t I bring my phone on this ride, this is f*cking stupid, go f*ck yourself.”
Six Flags Employee: “Have a six flags day”

Have a six flags day by Jose0213 June 3, 2018

Have A Six Flags Day 

A day at a Six Flags location where the employees continuously tell you to "Have a Six Flags Day" when you wait in line or get on a ride,its meaning is unknown

Six Flags Employee:Have a Six Flags Day!
Random Park goer:What the hell does that mean?

Have A Six Flags Day by Quikshotz1 April 10, 2010