What does it mean when in the catalog, on an item, you can't purchase it because it ways something like "wait 100 days"...and i dont know if its just me but i dont think the days are getting any smaller...so how do you get those items?

What you are looking at is the "Special" tab of the cattlelog. These items are for toons whose account has been a member for that certain amount of days, I don't remember for sure how long each is, but as you said they say on them. It's like a loyal user perk, and just still be a member after that long and you'll be able to buy the item! There are both emotions and clothing, and the clothes are really bright!

When they came out I was a member for a long time so I already had them all unlocked, but have discovered on other accounts the days thing. But I'm pretty sure it is updating just it's such a large number of days that you seem to not notice, haha.