In "The One With All the Thanksgivings," Chandler learns that Monica purposely dropped a knife to cut his toe when they were younger because she had overheard him call her fat. Chandler is understandably upset, so Monica attempts to make amends by making him laugh when she puts the whole raw Thanksgiving turkey on her head with sunglasses over it and dances around.
What to wear: Black pants and a green shirt, along with yellow sunglasses. If you're grossed out by the idea of wearing a raw turkey, you could also do this with a stuffed turkey hat, which would likely be more comfortable, too.