prsnuti

1. to crack
   Ekran telefona je prsnuo kad mi je ispao. — The phone screen cracked when I dropped it.
   Prsla mi je kost u šaci. — I've got a cracked bone in my hand.
2. to burst; to explode
   Zbog mraza je prsla cev u podrumu. — A pipe in the basement burst because of the frost.
   Balon je prsnuo uz glasan prasak. — The balloon burst with a loud bang.
3. (of laughter, tears) to burst out laughing or crying
   Svi su prsnuli u smeh. — Everyone burst out laughing.
   Devojčica je prsnula u plač. — The girl burst into tears.
4. (of liquid) to spurt, to splash; to spray
   Voda je prsnula na sve strane. — Water splashed in all directions.
   Prsnuo me je hladnom vodom. — He splashed me with cold water.
5. colloq. (of a person) to crack up; to snap
   Ako ovako nastavi da radi, prsnuće od stresa. — If he keeps working like this, he'll crack up from stress.
   Posle svega što mu se desilo, čovek je prosto prsnuo. — After everything that happened to him, the man simply snapped.

Do not confuse with prasnuti (to bang, to crash, e.g. prasnuo je grom). In the sense 'to burst out laughing' both verbs are used: prsnuti u smeh and prasnuti u smeh.