Answer:
Hyperbole
Step-by-step explanation:
It is hyperbole because it is exaggerating what Grandma said. Grandma didn't really say it a million times, so it is a hyperbole.
hyperbole
it has to be 20 letters long sojjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj