Every Saturday afternoon, a group of friends would meet at the park to play crack the whip until sunset.

The engineer inspected the bridge where crack trains had formed along the support beams.

The crack train from New York to Boston left fifteen minutes early, and we had to sprint to make it.

At the petrochemical plant, engineers steam-crack lighter hydrocarbons to maximize ethylene yield.

She loves to crack wise at family dinners, which sometimes makes everyone laugh.

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

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.

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