DLH/DSH is cat-speak for mutt...
It's just an annotation for a long-haired cat of unknown breed origin.
If your cats don't have pedigrees, and they aren't instantly recognizable as a certain breed, then they are probably DLH or DSH, depending on respective coat length.
I like cats, but I can't tolerate the gallons of fur that irritate my lungs...
*WARNING, NERD SPEAK*
The Domestic Long Hair, or DLH, and the Domestic Short Hair, or DSH, are the most common breeds of cat around.
Persians are also common, and Siamese are popular for some reason.
*END NERD SPEAK*
Haham I'm glad you think so. I just thought you'd find it more entertaining than the other 1,000,000 minecraft videos on YouTube. I hope you've already seen this before. :3