Burst out with (something) verb phrase
Used to say that someone utters something loudly and suddenly.
While he was sleeping, he burst out with a shriek.
The kid burst out with a scream when the door suddenly slammed shut.
She burst out with critiques as soon as she saw Peter going out with another girl.
Tell someone your opinions or feelings aggressively or abusively
The verb "burst" should be conjugated according to its tense.
Children or adults often say this phrase to get their friends to join in something, especially to jump into a swimming pool (pond, lake, etc.)
“Last one in is a rotten egg!” yelled Jane, jumping into the pool.