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, burst out]
    3: erupt or intensify suddenly; "Unrest erupted in the country";
       "Tempers flared at the meeting"; "The crowd irrupted into a
       burst of patriotism" [syn: erupt, irrupt, flare up,
       flare, break open, burst out]