Engrish is when something is translated from japanese, chinese, or some other language, and it isn't the same as what was supposed to be, often in a very funny way to English speakers.
examples:
English: Behold the wrath of my Engrish generator
Engrish: My reference generator of Japanese anger at Western
English: Engrish is so easy a caveman can do it.
Engrish: Japanese man barbarism of the English can do it easily
English: Engrish is fun. I could do this all day.
Engrish: Japanese English is fun. I make this day possible.
If you want to make your own Engrish just go to an online translator (I used google), translate your english message into Japanese, Chinese, or Korean. Then translate it back to english, and you will have Engrish.