Japanitis 

The sleepy, sluggish feeling you get after eating too much sushi. Much like the itis, but sushi specific.

Oh man, that all-you-can-eat sushi place gave me a bad case of Japanitis

Japanitis by FeuJaune January 3, 2011

japanties

when a girl has her period in her panties, thus making it look like the flag of japan.

i didn't have any extra tampons so by the end of the night i was totaly wearing some japanties!

japanties by monster429 November 29, 2010

Japanglish 

The speech pattern Wapanese use to show that they know 4-5 words in Japanese and try to insert them into everyday English speech in order to sound cute and/or superior.

Did you see that girl walking down the street. She is totemo kawaii!

Japanglish by Neoyamaneko December 14, 2003

Japanglish 

English speech or writing peppered with Japanese words, outside of an explicitly Japanese or academic context. Typically the Japanese words used will be limited to only the most common words and phrases found in anime that have become more-or-less common parlance among otaku.

Japanglish is distinguished from the simple use of Japanese-specific vocabulary by its frivolity: it is using Japanese words for the sake of saying something in Japanese, even if it is only a single word in an English sentence. Contrary to the speakers' intention, which is to associate themselves with Japan and all that they connect with it, Japanglish is more often than not a strong indicator of poor-to-nonexistent comprehension of the Japanese language, as those competent in Japanese will usually refrain from using Japanese terms except when speaking Japanese or when dictated by necessity.

Japanglish is stereotypical of wapanese, though its speakers may simply be overzealous anime fanboys or fangirls.

ALTERNATELY:
English as spoken by a native Japanese speaker, characterized by some or all of the following: inversion (or non-distinction) of "r" and "l" sounds, lack (or inversion) of definite and indefinite articles, non-agreement of number and gender, use of loanwords from English in their Japanese sense (e.g. "mansion" for "condo"), and poor word choice. It may not necessarily be "broken" English, but it is not spoken with complete fluency or comprehension, either. This sense is far less common in contemporary slang.

"Did you see that fangirl simply fawning over the cosplayer back there? She glomped him and squealed that he was "sooooooo kawaii" along with other random Japanglish nonsense."

-or-

"Our new business partners tried to humor us by speaking our language, but their Japanglish was so broken that we couldn't make heads or tails of what they were trying to say."

Japanglish by Julian G. July 13, 2006

Japanglish 

Also, heavily mispronounced and used incorrectly.

Mispronounced: Neko (which would be pronounced neh-koh) is pronounced by Wapanese as niko.

Incorrect Usage: Many Wapanese try to add honorifics to their own names, which is not only impolite, but indicative of how little they know about anything Japanese, such as: -name-chan (or -kun ir -san or -sama or -dono, etc.)

Japanglish by Idolcrash April 21, 2004

Japanglish 

The official language of the wordWapanese/word

Japanglish by Anonymous July 5, 2003

japanetically

Something that is modified or created by the Japanese. Japanetically modified cars are all the range these day, although there may be some adverse health risks due to lack of research in the growth of japanese products.

Some would say that the PS3 is a japanetically modified Xbox 360.

japanetically by Yapstarr December 28, 2008