Answer:
Onomatopoeia
Step-by-step explanation:
Tiana's phone slipped out of her pocket, landing in the toilet with a plop.
The figure of speech used in the text is onomatopoeia
Onomatopoeia is coined from two Greek words, onoma meaning "name" and poiein meaning "to make," . Therefore, onomatopoeia means to make a name or sound. It is a word used to describe a sound. It imitate or mimics the sound of the object or action it refers to when it is spoken.
The phone landing in the toilet with a plop.
The plop is the sound the phone makes when it landed on the toilet floor.