A private academy in South Korea, i.e. not public schools. Foreigners who teach English in South Korea either work at a public school or a hagwon, though hagwons are not only for language. There are hagwons for all school subjects and a student will attend any kind of one depending on what subject that student's parents want him or her to focus on.
I feel bad for one of my students; she goes to nine hagwons throughout the week. Her parents must be really strict.
A native or inhabitant of the West Coast, most notably from California, Oregon and Washington. A backformation from the phrase "West Coast best coast" or West Coast is the best coast with the suffix -er denoting, when added to a proper noun, the demonym, i.e. a person or inhabitant of said proper noun.
While Southerners might stress the first syllable of the word 'persimmon,' us Bestcoasters stress the second syllable.