Hi Takkilicious
As written above, it is well known even among people living in Japan that some people wear US style casual clothes with weird American-English words printed on it. I know well these words always puzzle English-speaking people. But, this is also true for English-speaking people.
Here are some weird mistakes of Japanese words printed on casual clothes for English-speaking people. Take a look at them one-by-one with laughing:
http://blog-imgs-31.fc2.com/n/a/k/nakasoku/org282051.jpgWhat is written in a circle is a well-known wash powder name. That is, it means "I'm wash powders."
http://blog-imgs-31.fc2.com/n/a/k/nakasoku/imga2f3928czik5zj.jpegWhat is written there means a big penis. That is, it means "I have a big penis."
Maybe, this man wanted to say "I'm a huge man."
http://blog-imgs-31.fc2.com/n/a/k/nakasoku/tshirt06_m.jpgWhat is written there means "I'm a person searching for Japanese girlfriends," but this guy clearly has a non-Japanese girlfriend."
http://blog-imgs-31.fc2.com/n/a/k/nakasoku/1020007.jpgWhat is written on his skin means "a stupid foreigner." Very weird mistake.
http://blog-imgs-31.fc2.com/n/a/k/nakasoku/1020014.jpgWhat is written there means "I'm a shop owner refusing all foreigners." Clearly, this man seems to be narrow-minded.
http://blog-imgs-31.fc2.com/n/a/k/nakasoku/P1010820.jpgWhat is written there means "I'm a stupid US person." Anyone, let him know what is really written there.
http://blog-imgs-31.fc2.com/n/a/k/nakasoku/1020016.jpgWhat is written there means "I'm a loud-voice person" or "You're noisy."
http://blog-imgs-31.fc2.com/n/a/k/nakasoku/org282250.jpgWhat is written above High-Tech Chewing Gum means "Rubber made from Western Wasabi." Wasabi is basically Japanese pepper for sushi. It is clear that there is no Western-style Wasabi. Note that there are grammatical mistakes in the following sentences.
http://blog-imgs-31.fc2.com/n/a/k/nakasoku/10204.jpgWhat is written there means "Tokyo is Wireless" or "Wireless Tokyo." Maybe, it should be replaced with radio station name "Radio Tokyo."
http://blog-imgs-31.fc2.com/n/a/k/nakasoku/10207.jpgWhat is written there means "Overall Abrasion." Is he worn away like a robot?
http://blog-imgs-31.fc2.com/n/a/k/nakasoku/10209.jpgWhat is written there is very shocking: womens' dirty genitals. Anyone, let him know what is really written there.
http://blog-imgs-31.fc2.com/n/a/k/nakasoku/102013.jpgWhat is written there means "I'm a person having acute low back pains."
http://blog-imgs-31.fc2.com/n/a/k/nakasoku/org282571.jpgThe Kanji character written on this T-shirts means hemorrhoid.
http://blog-imgs-31.fc2.com/n/a/k/nakasoku/102018.jpgWhat is written there means "breach of prison." It indicates "I'm a dangerous person who escaped from a prison."
I would like to know if there is anything a man should not wear in Japan.When you visit Japan, don't wear clothes with an unknown Japanese word printed on it. If the Japanese word is weird or dangerous, it will puzzle and confuse so many Japanese-speaking people.