You're all a bunch of idiots, the word you are talking about is SCABIES. And its not solely a STD. You can get it from anyone you have skin contact with who has it. If your arm rubs against a persons arm who has it at the store...then you will more than likely get SCABIES. You can also get it by sharing clothes, or blankets, or towels...etc.
I borrowed Sarah's blanket and she had scabies, now I do too. =(