Physical Fitness jokes

What was Frankenstein's second job? -- He was a bodybuilder.

A lady weightlifter goes to the doctor and says, "Doctor, I have a confession." The doctor asks, "What is that?" She replies, "I've been using steroids and....I think I've grown a penis." The doctor looks at her and asks, "Anabolic?" There's an awkward silence then she replies, "No, just a penis."

What's the difference between me and Spongebob?

Spongebob can actually get ripped.

"Chuck? How many push-ups can you do?" -- "All of them."

What is Jesus's favorite exercise?

Cross Fit.

Chuck Norris can do a wheelie on a unicycle.

What kind of exercise do lazy people do?

Diddly-squats.

A shark can swim faster than me, but I can run faster than a shark.

So in a triathlon, it would all come down to whoever can ride a bike the fastest.