yappable

no need to know intricate details/info about a particular subject/concept. Can yap (write anything on the spot or think/say things off the top of your head) about that topic in exams or tests. General knowledge enough to expand more on it.

This subject is yappable. No need to study much for Industrial Engineering, that subject is yappable. I ain't even study bro, that subject is so yappable.