Because they're funny on many levels.
When she pulls the tampon out and the cotton is already picked.
He said Nein My dads jokes are the wurst I tell you.
AcCOUNTing This joke must be on a popsicle stick somewhere.
Get off my nuts!" (ps. I made this joke up yesterday... i am having hernia surgery tomorrow, and i lol'd so hard at myself that i about caused a second one to pop out)
Being stuck in an elevator with the Doublemint twins.
A nun with a javelin through her neck.
I'm gonna level with you.
BUZZ LIGHTYEAR: I have an idea...