To show kindness before abducting someone
Male: Yeah, just go yinch that guy first, it'll be easier to get him.
It's a name that only your dad could give you.
In a sense, the word can be described as 'the one who will bring balance'
Mum: Oh I'm so proud of him.
Dad: Of course, he's the Yinch.
Son: What? What does that even mean?
To show kindness before you betray someone
We can yinch him and then steal his lunch