Answer:
Hyperbole
Step-by-step explanation:
A hyperbole is a figurative statement wherein the speaker makes an exaggeration that is hard to believe because he wants to make a point. In the poem above, the speaker makes a lot of exaggerations that are hard to believe simply because he wants to make the point that he will not do the assignment that his teacher assigned him.
It is impossible to bathe with a man-eating shark, or wrestle a lion or even pet ten porcupines. This demonstrates the determination of the poet not to tackle the assignment that his teacher gave.