Phrasal Verb - Burst Out ...crying/laughing

Burst out (Inseparable) (V1=Burst, V2=Burst, V3=Burst) = Start intensely…

...Either: ”Burst out crying”

Examples: 

“When he called me ‘fat’, I burst out crying”

___________________________________

OR: “Burst Out laughing”

Example: “He showed us his penis, and we burst out laughing”