Because they'll crack up anyways
They don't like getting sand in their crack.
A quackhead.
Thesaurus Rex! omg, I crack myself up! Skip
Any way you want, concrete floors tend to be very hard to crack.
I'm bad under pressure!! It's the lamest car joke in the world.
Tacos. Overheard an old man telling another guy how he lost his farm in Mexico, and how the smell reminded him of tacos.
Unicorny
A corn snake
Eric Clapton would never let a bag of cocaine fall out a window.
Red carpet question with "Cocaine and sit ups." #GoldenGlobes