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

All over it like a japanese Headband

The term is as was created by the great man avg and it means on top of it

frank was All over it like a Japanese headband

All over it like a japanese Headband by Sk8death26 October 2, 2016

Flying the Japanese Flag 

Of a female, to menstruate.

No chance of a poke tonight, my girl is flying the japanese flag.

Flying the Japanese Flag by gobshite July 4, 2009

The Japanese Are Attacking 

Term used when a girl starts her period and needs to tell someone discreetly

Katie, the Japanese are attacking

The Japanese Are Attacking by Casityyy March 26, 2019

Saluting the Japanese Flag 

Wiping your arse.

Having runny shits mean that I have spent most of the day saluting the Japanese Flag

Saluting the Japanese Flag by TheManMachine August 3, 2009

The Japanese Cream Poke 

When you jizz into your hand and just shove it in her eye.

I gave my bitch the japanese cream poke and her eye started gushing blood.

The Japanese Cream Poke by Galex Kuyham March 28, 2009

Jewish Native American Japanese Mulatto 

Caleb Jackson. It's a term used for when you don't know the ethnicity of a certain person and unsure of what to call them.

Caleb Jackson. 5'9". Gunnison, CO. Jewish Native American Japanese Mulatto

Jewish Native American Japanese Mulatto by Caleb Jackson January 16, 2008