Go viral 【Mainly used in social media.
It tends to be used when it attracts attention in a positive way.】

Unfollow 【It comes from the word "remove."
You unfollow someone or 
You've been unfollowed by someone.】

To tell her/him 【To tell the person you like
about your feelings.】

To be at a loss / be screwed 【A state of being cornered and having no more moves left.
This is shougi term but this slang is
widely used not only in Shougi, also in online games and daily life.】

Touching, emotional, moving or vibey
【A feeling that’s emotionally touching, nostalgic, or mood-heavy.】

Go viral 【Mainly used in social media. It tends to be used when it attracts attention in a positive way.】