I made a list of words (frequently used within the Thai Royal Institute dictionary 2542) a year or so ago (I posted a few words in G2K ) . ตายโหง is not used often in the dictionary. But it may used a lot in real life. It would be good if they also show their source of information.

A key aspect of learning is not about "remembering" but "analysing facts".

What are facts? That's a real 21C skill to learn, so we can filter 'good' from 'bad'.