Deluxe handshake is a "man's" handshake. When you squeeze someone's hands so hard that you make them kneel down from the pain that you are inflicting on their knuckles, you are giving a deluxe handshake.

“加强级握手”指的是很“男人”的握手。当你非常用力地握对方的手，把对方关节捏得咯咯响，疼得人家差点给你跪下，这就是“加强级握手”。

Example:

Me: So Mike, what's a deluxe handshake?

我：迈克，什么是加强级握手？

Mike: It's what I did to Pastor Cesar when I first met him. I had him praying to me in front of everyone.

迈克：我第一次和凯撒牧师见面，我就给了他一个加强级握手。谁让他在那么多人面前为我祷告来着。