To start laughing suddenly or uncontrollably. The kids burst out laughing when the clown fell down on stage.See also: burst, laugh, out
burst out laughing
to begin to laugh suddenly. The entire audience burst out laughing when the clown took a fall.Every time I think of you sitting there with a lap full of spaghetti, I burst out laughing.See also: burst, laugh, outAcronymsSeeBOL