burst out laughing
I burst out laughing.
J'ai éclaté de rire quand j'ai vu ça et elle était super fâchée.
I burst out laughing when I saw that, and she was really angry.
— The Big Sick (2017)
They burst out laughing.
You burst out laughing.
They burst out laughing.
The crowd burst into laughter.
Elles ont toutes éclaté de rire.
They all burst out laughing.
We burst out laughing.
They all burst out laughing.