Mojibake文字化け
gibberish text caused by the wrong character encoding [wikipedia]or, when unicode goes wrong.
				Handwritten Mojibake
Allegedly, a French person tried to send their Russian friend a package by writing the friend's address exactly as it appeared in their email client. Unfortunately, there was a unicode issue: the French person's email client did not display the Cyrillic characters correctly and, instead, "substituted the diacritic symbols from the Western charset (ISO-8859-1)." Thankfully, the Russian postal workers were still able to decipher address and deliver the package. [see: story & image source]
So, did this story really happen? At one point, this story and image were on Wikipedia, but they were deleted years ago due to poor sourcing. *womp womp*
Either way, you can definitely see that someone deciphered the address & wrote the correct Cyrillic characters in red over the mojibake (or krakozyabry, in Russian) phrases written in black.
				you've probably encountered mojibake
in your own web adventures.