DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   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]