A bar joke is a type of joke cycle that usually begins with some variant of the line "A man walks into a bar..."
A priest, a rabbi, a minister and a duck walk into a bar...
A pun, also known as a paronomasia in the context of linguistics, is a form of word play that exploits multiple meanings of a term, or of similar-sounding words, for an intended humorous or rhetorical
A black Jeep with license plate BAABAAA – a pun on "Baa, Baa, Black Sheep"