blurt

[chiefly with out] To utter suddenly and unadvisedly; to speak quickly or without thought; to divulge inconsiderately.

• Please think about your reply and don't just blurt out the first thing that comes to mind.

To spurt.informaluncommon

• the sound of rusty water blurting from the faucet in the kitchen
• Blurted tea onto the monitor at FAL being "satisfying" and Brine's reaction […]

An abrupt outburst.