japan flag 

The act of staining a white sheet while on your period.

'Jennifer totally made a japan flag last night!'

japan flag by katty18 June 7, 2014

japan flag 

a "japan flag" is the stain created on white or light coloured fabric, often on bed-sheets or underwear, when a total bottom has been railed bareback up the ass by a footlong and bleeds from their butt profusely

"That dude fucked me so hard last night that I woke up and my bed looked like a Japan Flag!"

"I had cheeky bum sex in the janitor's closet with the Quarterback, and he want in raw and rough, so now my ass is bleeding and my underwear have a total Japan Flag situation going on"

japan flag by n1ck_sP3ncerr July 13, 2016

Japan's flag

The white symbolizes rice and the red symbolizes a dried pickled plum.

i love Japan's flag

Japan's flag by oughfgjk April 16, 2019

<7.6.9.7.>Put Genitals{[(.6.7.6.)]} On {[(.6.7.6.)]} The Country Of Japan's Flag <.7.9.6.7.> 

<7.6.9.7.>Put Genitals{(.6.7.6.)} On {(.6.7.6.)} The Country Of Japan's Flag <.7.9.6.7.>

<7.6.9.7.>Put Genitals{(.6.7.6.)} On {(.6.7.6.)} The Country Of Japan's Flag <.7.9.6.7.>

<7.6.9.7.>Put Genitals{[(.6.7.6.)]} On {[(.6.7.6.)]} The Country Of Japan's Flag <.7.9.6.7.> by SuelTameOresuTeMato April 27, 2025

Flag of Japan 

When you fuck a chick on her period and blood leaks onto white sheets creating a Japanese flag lookalike.

B: Shit! Your bed sheet looks like a giant flag of Japan!
J: Yeah, Rachel is on her period and I fucked her on the bed last night.

Flag of Japan by csisok86 April 8, 2016

Flag of Japan 

Slang

Description of a white person's bottom following a period of gastric distress, often following a curry

1
"Mate, how was the curry last night?"
"Great but my arse is like the Flag of Japan this morning"

Flag of Japan by Rawhyde July 29, 2017

Japanfag 

1. One who is fucking Japan's culture in the ass by overusage of terms such as "kawaii," excessive worshipping of Dragon Ball Z/GT, and honest shock when he/she discovers that not all Japanese people are ga-ga over anime.
(syn.: DBZluvah, animegurrrl093452, iwuvbishunen19, kuramasgrl4eva, InUyAsHaBoY, repeat pattern ad nauseum )

"lol, did you see teh kawaii bishounen in InuYasha last night?!!?!11" "Shut up, Japanfag."

Japanfag by S. Chopstick January 4, 2005