How can you tell this joke was submitte...

The one with the dirty knees.

They're the one with the dirtiest knees

Because the Earth is not a sandwich!

When you marry her as a billionaire.

One, but you can be sure a whole Reddit community will appear to expand the joke, make it funnier and eventually run it into the ground.

I think it's because usually the punchline is too long

WHERE IS MY BABY! Wait, do I have one of those DO I HAVE A BABY!

Pho queue

They couldn't figure out Who was on first (Sorry, if this has been submitted before, im new here)

Because there's no karma involved.

How can you tell this joke was submitted by a woman?