Uncuffed means that you are single and free to be yourself.

Usually during the spring and summer months when people who were previously in relationships during the winter break up with their girlfriend/boyfriend to be free for the summer and warm months so you can play the field and not be tied down during the best times of your life.

a person that contuses to tell everyone that they are single. this may be to let the world know that they are back on the market and they are looking for some one to cuff them. sometimes they might say they are happy to be single but deep down they are upset and hate the thought of being lonely. you can find this person on any social networks ranting about an ex and proclaiming their uncuffness.