Afterlife Kiss

This basically means kissing someone when they're dying, and after the kiss they're dead. Basically being happy one last time before they meet their end.

"Did that anime character really receive an Afterlife kiss?"

"Yeah, it was so sad. I cried all night."

In a few

In a few means that you don't know in how time an event will occur.

For example: " Yo, do you know when she will come"

" Yeah I think she's gonna be here **in a few**