Yes, it DOES exist, this is the infamous Pun Puns section! It may mess with your head...

How do knights communicate?
They use chain mail.
What do you call a broken can opener?
A can't opener
What did they use to set off the amazon warehouse fire?
Amazon kindle.
Some say that puns aren't very funny, while others take them very seriously...
I guess the one thing we can all agree on is that puns are no joke.
Puns make me numb, but math puns make me...
Number.
If you can think of a better fish pun than me
Then let minnow.
I've already heard seven cancer puns today.
If I hear tumor it's gonna benign.
WOOD you tell give some wood puns?
Boss: "How good are you at PowerPoint?" - Me: "I Excel at it." - Boss: "Was that a Microsoft Office pun?"
Me: "Word"
Did you expect to laugh at puns?
No, but they've groan on me!
How were these puns about puns?
They were pun-questionably pun-fortunate!
What's a pun's best trait?
His pun-ctuality!
What's a pun's favorite love song?
"My Punny Valentine!"
Why was the pun a bad comedian?
He never got the pun-chline right!
Why did the pun fail his English class?
He didn't use proper pun-ctuation!
What did the pun say to his annoying colleague?
You're being pun-reasonable right now!
What a pun's dream job?
To be an acu-pun-cturist!
Why did the two puns go to camp together?
They wanted to be pun-kmates!
What type of apartment does a pun live in?
The pun-thouse!
Have you ever tried to write your own puns?
It's a fairly difficult pun-dertaking!
What's a pun's favorite movie?
It's a Punderful Life!
What happened when the pun misbehaved in school?
He was pun-alized with detention!
What did the pun mom say to the new pun dad?
We have a pun in the oven!
Do you have something against puns?
No, I'm not homophonic!
Why do thieves have a hard time understanding puns?
Because they take things literally!
How would you describe a pun about a pun?
They're pun-ishingly bad!