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1.
1. A term usually applied to white males who have a clear sexual preference for women of asian descent, although it can also be used in reference to white females who prefer asian men.

2. An infectuous tropical disease carried by mosquitoes.
"Every time we go to the club, Dave goes straight for the asian women. I swear, that dude's got a serious case of yellow fever."
by Deej July 30, 2004
 
2.
Sexual obsession felt by a non-asian (Usually white, usually male) towards asians of the opposite gender. Symptoms of yellow fever include stalking, halfhearted attempts to learn Japanese/Mandarin/Cantonese/Korean and whacking off to Sailor Moon video's.
And I should know.
Wow, have you seen that Yumi Hasagawa? she's so hot!

Calm down man, you've got a dose of yellow fever.
by Miles Pieri February 02, 2004
 
3.
A mental disease that afflicts the Wapanese, the fanboys, and the otaku. Symptoms of this condition are;
(a) A sexual obsession towards females of Asian descent.
(b) An obsession towards Asian media and entertainment, primarily anime, hentai, manga, and other Japanese media.
(c) A sudden urge to imitate anything from Asia. For instance, learning Japanese and eating sushi just for the sheer sake of trying to be "Asian".
(d) Thinking that one knows more about Japan than the Japanese themselves, despite never setting foot in that country or at lest reading about it.
An Asian-American girl was harassed by some psycho who had a bad case of yellow fever. Fortunately, she had a can of Mace(tm) in her purse and did not hesitate to use it on him.
by otaku killer September 28, 2003
 
4.
An affliction the webmasters at Urban Dictionary seem to have an acute case of. Reload their front page 10 times, and I bet a different asian girl pops up 9 times.
Obsess much, guys? Your yellow fever has infected nearly the entire site
by D. Arse October 03, 2005
 
5.
1) A disease carried by mosquitoes in tropical regions, especially in South America, Africa, and the Caribbean. Symptoms include sudden fever, yellowing of the skin, and hemorrhaging. A very dangerous disease that is quite often fatal. It was the number one cause of death for Americans during the construction of the Panama Canal. Nowadays a yellow fever vaccine is required if you're traveling to said tropical regions, especially during the summer.

2) When a person of non-Asian ethnicity has strong feelings and/or urges of an Asian person of the opposite gender. Usually these urges are sexual, but not always. Wasn't too widely known until the release of Harold and Kumar Go to White Castle.
1) Good God that vaccine hurt! But I guess it's better than dying....

2) Little Billy went to a club in Chinatown and now has a sudden case of yellow fever.
by Matt August 09, 2005
 
6.
When a white male has an excessive attraction towards females of the Asian persuasion regardless of how FOBISH or jacked up looking the girl really is; he’ll still think she’s the most fuckable thing on the planet. Also, they know nothing about the girls culture, can rarely tell the difference between any nationalities, think they all fuck like the girls they see in porn and never heard of Laos until King of The Hill.
Fevered: dude, I wanna fuck Trang!
Friend: are you kidding me? She’s missing half her teeth and is built like a 12 year old boy! Plus she barely speaks English! man! You’ve got yellow fever!
by Mr Wall December 22, 2005
 
7.
The best infliction to have ever hit caucasians. Signs of having contracted yellow fever includes extreme attraction and affection towards Asians of the opposite sex.
Oh my, have you seen Mimi and Lily? They are both so hot!

Calm down Douglas, you have a major case of yellow fever!
by Piranha July 18, 2006