crack up
US /kræk ʌp/
UK /kræk ʌp/

1.
scoppiare a ridere, scompisciarsi dalle risate
to laugh uncontrollably or to cause someone to laugh uncontrollably
:
•
The comedian's joke made everyone crack up.
La battuta del comico ha fatto scoppiare a ridere tutti.
•
I always crack up when I watch that movie.
Mi scompiscio sempre dalle risate quando guardo quel film.
2.
crollare, impazzire
to suffer a mental or physical breakdown
:
•
The pressure of the job caused him to crack up.
La pressione del lavoro lo ha fatto crollare.
•
She was afraid she would crack up under the stress.
Aveva paura di crollare sotto lo stress.