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1.
This is the point where a relatively serious person suddenly goes over the edge to a laughing person. It can be brought on by a joke or a situation, and it doesn't require any prompting although previous jokes increase the chance of breaking the laugh limit.
John was being very serious about his financial situation until he saw a very funny political video, and then suddenly he broke the laugh limit. Then he was laughing so hard that he almost cried.
by Chris Doc October 19, 2009

Words related to laugh limit

barrier breaking laugh limit serious snikering