Has My Lamb Gone off?
Slimy Meat or Rotten Taste If the Meat Holds Its Form, It's Fresh. If It's Possible, Scrape the Meat with Your Fingernail. If the Nail Retains a Shiny Film...
Is lamb OK 3 days out of date?
It will probably be fine for several days. Just think of it as being more matured like a well hung beef. There's no gentle way to break this to you OP; but if the lamb is is past its "use by" date then it is almost certainly dead, and the best thing you can do now is to eat it!
What does spoiled meat smell like?
Perform a smell test
This test is probably the easiest and fastest way to determine whether meat has spoiled. It applies to both raw and cooked ground beef. Though the scent of fresh ground beef is barely perceptible, rancid meat has a tangy, putrid odor. Once it goes bad, it's no longer safe to eat.