A break up in which the guy stops all forms of communication with no explanation. If he sees you by chance, he will ignore you, but would have no problem greeting your friends right in front of you.
I was dating Aiden, this Korean guy, for 6 months. All of a sudden, he just stopped calling and texting. It was weird. then he came to my city last night, said hello to all of my friends and ignored me. I guess it was one of those Korean Break-ups I've been hearing about.