Transpositional pun

Form of joke

A transpositional pun is a pun format with two aspects. It involves transposing the words in a well-known phrase or saying to get a daffynition-like clever redefinition of a well-known word unrelated to the original phrase. The redefinition is thus the first aspect, and the transposition the second aspect. As a result, transpositional puns are considered among the most difficult to create, and commonly the most challenging to comprehend, particularly for non-native speakers of the language in which they're given.

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