Extended+Metaphor

Definition:
An extended metaphor is a metaphor that continues into the following sentences. An extended metaphor is also a metaphor developed at great length, occurring frequently in or throughout a work.

Example Poem:
"My Brother"

My brother is a killer whale. He is huge and scary with tatts, long hair & beard. But underneath he is meek spending time in the garden and around the house socialising with the ones he loves giving my cousins rides upon his back. Truly he is more dolphin than killerwhale.

How Extended Metaphor Is Used:
His brother looks like a killer whale, but he is nice. He spends time in the garden. He is known as a dolphin rather than a killer whale