An extended metaphor is when a comparison between two things is used throughout a whole piece of writing, making it longer and more detailed. Full definition
And extending this metaphor just a little bit farther, you don't even have to have the same flavor of pie. (deanwesleysmith.com)
Lutz and Mold's work extends the metaphor of crash to mash and mesh in their dealing with the internet's mashup culture driven by a «desire for a forward motion», whereby they rather aestheticise destruction than the clean and sleek over-tones of much of digital culture. (aqnb.com)
Her been - there - done - that words and pictures will inspire, mentor, and guide you through your own weight - loss success story with step - by - step instructions and extended metaphors for: (calorieaccounting.com)