Answer: Upon reading the Title "Abuelito who?" it makes me wonder, who's Abuelito? and who is the who referring too? Was it saying Abuelito who..... did something? It might be about an Abuelito who felt something or did something, it raises many questions.
Hope this helps :)
The figurative language is “like a ball”. It’s an simile since he’s comparing the fall to a rolling ball. Well he’s comparing the way he fell like an ball rolling down the stairs.
