crack up

US /kræk ʌp/
UK /kræk ʌp/
"crack up" picture
1.

rachar de rir, fazer rir muito

to laugh uncontrollably or to cause someone to laugh uncontrollably

:
The comedian's joke made everyone crack up.
A piada do comediante fez todo mundo rachar de rir.
I always crack up when I watch that movie.
Eu sempre racho de rir quando assisto a esse filme.
2.

surtar, ter um colapso nervoso

to suffer a mental or physical breakdown

:
The pressure of the job caused him to crack up.
A pressão do trabalho o fez surtar.
She was afraid she would crack up under the stress.
Ela tinha medo de surtar sob o estresse.