burst into
1. Also, burst out in or into . Break out into sudden activity. For example, burst into flames means "break out in a fire," as in This dry woodpile may well burst into flames. A version of this term, which dates from the 16th century, was used figuratively by John Milton: "Fame is the spur ... But the fair guerdon [reward] when we hope to find, and think to burst out into sudden blaze" ( Lycidas, 1637).
2. Also, burst out. Give sudden utterance to. For example, burst into tears or laughter or song or speech or burst out crying or laughing or singing , etc. mean "begin suddenly to weep, laugh, sing," and so on, as in When she saw him, she burst into tears, or I burst out laughing when I saw their outfits, or When they brought in the cake, we all burst into song. These terms have been so used since the late 1300s.
canned laughter
Also, canned music. Prerecorded sound effects that can be played repeatedly, as in That canned laughter doesn't make his jokes any funnier, or Canned music is greatly reducing the number of musical jobs available. O. Henry had the term in his story, Cabbages and Kings (1903): "We'll export canned music to the Latins." Canned laughter today is often used in broadcasting to simulate the reaction of a nonexistent live audience. [c. 1900]
shake with laughter
Convulse with the humor of something, as in When asked if he was planning to give away the bride, he shook with laughter at the very thought . [Early 1700s]