burst out (
http://definr.com/burst out)
v 1: give sudden release to an expression; "We burst out
laughing"; "I hate you," she burst out.
2: appear suddenly: "Spring popped up everywhere in the valley"
[syn:
pop out]
3: erupt or intensify suddenly; "Unrest erupted in the
country"; "Tempers flared at the meeting" [syn:
erupt, {flare
up},
flare,
break open]