Raw chicken that has been thawed in the fridge will have a moist texture to its surface whereas expired chicken will be slimy. You know it's time to throw out the poultry when it maintains its sliminess even after you wash it.

How can you tell if thawed chicken is bad?

If your chicken is slimy, has a foul smell, or has changed to a yellow, green, or gray color, these are signs that your chicken has gone bad. Toss any chicken that's past its expiration date, has been in the fridge for more than 2 days raw or 4 day cooked, or has been in the temperature danger zone for over 2 hours.

Is chicken supposed to be slimy after defrosting?

It can feel quite slimy once defrosted, but this is just the raw "juices" coming out. As it starts to go bad, the color fades to a shade of grey. Frozen chicken (and all frozen foods) are safe to eat indefinitely, but will lose taste and flavor the longer it is stored.