Post a clever pun.

Exit signs? They’re on the way out!
Velcro? What a rip-off
Conjunctivitis.com – that’s a site for sore eyes.
I’ve just been on a once-in-a-lifetime holiday. I’ll tell you what, never again.
I’ve decided to sell my Hoover – it was just collecting dust.
The advantages of easy origami are two-fold.
Crime in multi-storey car parks. That is wrong on so many different levels.

I have a few jokes about unemployed people, but none of them work.

Where do I start? There's no line around here.

"Aha! Boy foot bear with teaks of chan!"

Not exactly a pun... But I like to say: sometimes, cuss words are fucking necessary.