noun
A selfie, especially one taken with a smartphone. The term is a borrowing from Korean and is used in Japanese youth culture, often in contexts related to social media.
from Korean selka
See also: 自撮り
友達と一緒にセルカを撮った。
I took a selfie with my friend.
彼女は毎日セルカをSNSにアップしている。
She posts a selfie on social media every day.