Question

Figure of speech of this sentence; The biscuits she made were rocks in my stomach

Answer 1

A metaphor compares things without using like or as (which would be a simile). For example, "he was a flash of lightning when he ran" or "the pile of dishes was a rick to which I was shackled" or "the biscuits she made were rocks in my stomach."

Answer 2

yeah its a metaphore