Answer:
the only amusing part of the body
I have an eye but cannot see. I take time to generate and can dissipate in seconds. What am I?
I am a type of cheese made backwards
I am the signature stroll of ducks and penguins
I like to twirl my body but keep my head up high. After I go in everything becomes tight
No matter how little or how much you use me, you change me every month.