Is such a stinky flower that it makes people regret having nose metaphor personification simile or hyperbole?

This is a great example of how you can combine different literary devices for a powerful effect! Here's a breakdown:

* Personification: We're giving the flower the human ability to make people regret having a nose. This brings the flower to life and emphasizes its unpleasantness.

* Simile: You could use a simile to compare the flower's smell to something truly awful, like "The flower smelled like a thousand rotting fish."

* Hyperbole: You can exaggerate the smell's intensity with a hyperbole: "The flower's stench was so overpowering, it could make you wish you were born without a nose."

Here are some examples of how you can put these together:

* Personification & Simile: "The flower, a malevolent creature disguised as petals, reeked like a garbage truck that had been left to bake in the summer sun."

* Personification & Hyperbole: "That flower, a devious fiend, had a stench so potent it could strip paint off a wall and make you long for the blissful silence of deafness."

* Simile & Hyperbole: "The flower's aroma was like a thousand overflowing dumpsters, each one more putrid than the last, and its fragrance was so strong it could knock you unconscious."

Ultimately, the best approach depends on the tone and the overall message you want to convey.