It is a figure of speech comparing to an exaggeration "He swallowed a ton of water"
Hyperbole is exaggeration.
The tree was so tall it was in outer space
it is like your sister is so dumb that she thot of meat while eating cake.
hyerbole, symbolism, personificatio, juxtaposition, etc..
Hyperbole-eg. I haven't seen him in a million years. this is AA hyperbole because it is stretching and exagerating reality
A hyperbole for a tall boy could be, "He’s so tall that he can touch the clouds with his fingertips." This exaggeration emphasizes his height in a playful and imaginative way, making it clear that he stands out significantly among his peers.