He cracked up after hearing that joke.

他听完那个笑话后大笑了。

youdao

He cracked up laughing, as if it was the funniest thing he'd seen in a long while. I collapsed onto the ground, into a kneeling position, my hands cradling my face.

纳森毫无节制地‘嘎嘎’地笑起来，就象是好不容易看到了一件最可笑的事情。

youdao

He walked in and everyone just cracked up.

他一进来，人人都捧腹大笑起来。

《牛津词典》

"It looks like a hot dog pizza, " he ridiculed, as his two culinary colleagues, also in white coats, cracked up.

FORBES: The Odd Couple