BURSTING

To break from internal pressure.

"I blew the balloon up too much, and it burst."

To cause to break from internal pressure.

"I burst the balloon when I blew it up too much."

To cause to break by any means.

The act by which something bursts.

"the burstings of balloons"

Very eager (to do something).

"I was bursting to tell him the secret."

(often followed by "to go to...") Urgently needing to urinate.

"Can you tell me where the toilets are? I'm bursting."