I had conversation like this my friend today (She doesn't like kpop)

Friend: "Venla!(It's my name.) Let's take selfie together!"

Me: "What is selfie? Do you mean selca?"

Friend: "What te fu*k is selca?"

Me: "Selca is taking picture of yourself."

Friend: "No! That's selfie!"

Me:"It's selca!"

Friend:"Selfie!"

We had that argument about 30 minutes.....