Hold my beverage whilst you observe this

This is just too good not to post.  There is a couple in our sailing class, he is from London.  We were talking about something a couple of days ago and I said that is one of those “hold my beer and watch this” moments.  He cracked up and thought it was the funniest thing he had heard in a while.  So every sailing move that got messed up he has call it a “hold my beer and watch this” move.  The funny part is his heavy English accent saying “hold my beer and watch this”.  It is quite the show!  I am thinking tomorrow I will have to try “hold my beverage whilst you observe this”.  

I had to come back and edit this.  The correct way to say it, according to Rob and Anne, is "I say old man, hold my pint whilst I butcher this".  Yea they had to explain it me.  You will just have to figure it out.