FOP_fan17, there hasn't been sn episode that has something to do with Spongebob Squarepants party, but in the episode "Spongebob meets the Strangler", they were celebrating his birthday, by having a Birthday party, and a party, because of his attendance at work, or something.

I would love to see a Thanksgiving episode. It can be about the first Thanksgiving in Bikini Bottom. It should be a Patchy special where he and Potty celebrate Thanksgiving in Encino. That would be hilarious. Also there should be an episode specifically devoted to Spongebob's birthday. The minor party for his birthday in "Spongebob Meets the Strangler" doesn't count. You don't know what birthday he was celebrating, although in "No Free Rides" you see on his boating license that he was born in July of 1986. The birthday episode could be the first new episode after they have their 10 year anniversary special or whatever they will do in the coming year.