"Not know beans about something" is an idiom that means to be unaware or uninformed about a particular topic or subject. There are many synonyms that can be used to express the same idea, including phrases such as being clueless, ignorant, unacquainted, unfamiliar, or inexperienced. Other options include being in the dark, out of the loop, have no knowledge, be oblivious, and have no clue. Ultimately, all these phrases convey the idea that the person's knowledge or understanding of a specific topic is lacking or nonexistent. Therefore, when faced with a new concept or subject, it is always advisable to seek information and increase one's knowledge about it.