ものか/もんか
Usage
(V/いA/なAな/Nな) + ものか/もんか Spoken expression used to make strong denial or commitment to absolutely not do something
Examples
こんなにたくさんの仕事、明日までに終わるものか
Surely this huge pile of work isn't something you can finish by tomorrow
あんな高いもの、頼まれても買うもんか
I'd never buy something as expensive as that even if you ask me