u/Glittering-Flower564

Hey guys I’m a little confused cause I haven’t gotten a visa to teach English in Korea before and I started looking for a job in Korea (at least two months in so far) and one of my recruiters just told me “can you come to Korea and do the visa run?” but I don’t understand what it means?? I’m not sure if he is asking me to apply for my visa in korea but I don’t have a job yet?? I’m also wondering what difference would it make if I applied for my visa there rather than here in the U.S. ? Can someone please explain what this could possibly mean?