Every winter morning the workshop's radiator steam-cracks as pressure builds.

The police raided the abandoned building after neighbors complained that it had become a crack house.

At the old theater, you could see people's ass cracks whenever they stood up too quickly.

After bending over to pick up the groceries, he realized his butt cracks were visible through his tight jeans.

I spent the whole night reading crack fics and woke up with a notebook full of ridiculous plot ideas.

My friends and I stayed up all night writing a crack fic in which the villain runs a bakery and the heroes are competitive knitters.

The laser was powerful enough to crack through the thick metal plating.

She cracks a book at her desk every night to prepare for the exam.

When he leaned over to pick up the wrench, his plumber's crack was visible to everyone in the garage.

If you want to pass the exam, you'll have to crack a book this weekend.