Top Definition
To describe when a person is humorous for a lengthy period of time.
Everything that guy said was funny, did he swallow a joke book or something?!?

Also can be replaced by 'dictionary' for someone who says words that no-one understands.
#joke #book #humor #humour #funny
by alimccarley August 15, 2008
5 Words related to Swallow a joke book
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