WTF SEARCH TERMS: YouTube Edition

I’ve recently done something I previously said I wouldn’t do, and monetize some videos on my YouTube.  I am still figuring all of this out, but one feature allowed me to see the search terms that were apparently used by “my viewers”.  How they became “my viewers” with search terms like these, I can’t figure out.  Maybe you can!  Do you have a monetized YouTube?  What does all this mean?  What the hell is “mukbang”?