Unfortunately, I have no one in the audience who was able to satisfy my curiosity on that.

But hedidhave a guest who could.

Im sorry, Jon, Im on this new medication, Rudd confessed after he took a seat.

Paul Rudd - Death of a Unicorn Friendship, & the Perineum | The Daily Show

Paul Rudd and Jon Stewart on ‘The Daily Show’.Credit:The Daily Show/Youtube

My perineum is onfire.

Stewart then praised him for his agonizing perineum performance.

By the time you were done, my perineum hurt.

Paul Rudd - Death of a Unicorn Friendship, & the Perineum | The Daily Show

Paul Rudd pretending to have an inflamed perineum.The Daily Show/Youtube

Thats how powerful it was, the host said.

To which Rudd replied, Thats good acting… or is it acting?

You knowThe Portrait of Dorian Grey?

And I also have it where it looks like a spaceship.

Its called the Perineum Falcon.

I do hope you get that checked out, Stewart said, still laughing.

Paul, Im gonna be honest with you.

I didnt even know you still did movies, Stewart said.

I thought you were a WebMD doctor and I just brought you out here to talk strictly medicines.

My daughter would be 4 years old, we would do it with medicines.

Shed be like, Abilify!

And I swear to god, we could make it through the entire alphabet, he said.

Normally, you skip x, but shes, Xeljanz!

Xanax didnt even make the cut!

They then discussed the medications they had in their homes growing up.

I had St. Josephs Children Aspirin and I was 17 and had chlamydia, Stewart teased.

Rudd, in turn, shot back, But, how was your perineum?

As Rihanna would say: shine like a diamond, Stewart teased, putting his head in his hands.

You could eat off that thing!

And, boy, did I try!

Rudd chimed in, “We all tried!”

Watch Rudd and Stewart discuss the perineum in the video above.