Blurt (verb)

1. To speak suddenly and without thinking.
2. To say something suddenly and unexpectedly.

Origin:

The word blurt comes from the old english word "blortan" which means to burst out or to speak impulsively. it refers to the act of speaking suddenly and without thinking.

Examples:

1. He blurted out the answer before the question was finished.
2. She blurted out her secret before she could stop herself.
3. He blurted out an apology as soon as he realized what he had said.
4. The child blurted out the surprise before it was supposed to be revealed.
5. He blurted out the truth without thinking of the consequences.