What comic book superhero was fat and got his powers from lollipops?

You're likely thinking of The Tick, a superhero who is definitely large and enjoys lollipops. However, his powers come from a blue cosmic goo he was doused in, not the lollipops.

The Tick is a satirical and humorous superhero who doesn't take himself too seriously. He's known for his goofy personality and his battles against villains like The Chair and The Terror.