/ blɜːt; NAmE blɜːrt/ verb
blurt sth (out) to say sth suddenly and without thinking carefully enough :
[ vn ]
She blurted it out before I could stop her.
[ v speech ]
'She's pregnant,' Jack blurted.
[also v that , v wh- ] ➡ note at call
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WORD ORIGIN
late 16th cent.: probably imitative.