Banana Plugs too narrow


I purchased high end banana plugs to use on my Coincident tube amp and my Coincident Victory speakers.  The banana plugs are too “narrow” for the “hole” on the speakers.  They slip in and out, with absolutely no connection.  I don’t know why.  Does anyone out there have an answer?  Thanks much.
enofile
It took several videos, but the interweb really does have all the answers. Bananas have split sides. Stick a screwdriver in there, twist it sideways, widen the slit. This will increase your girth. But you will lose a little length. Your banana will be thicker, but shorter. It just won’t go as deep, even when you are all the way in. Sorry. But in spite of everything you may have heard there is no way to make your banana thicker and longer. If you want to see how this is done do a video search for don’t break me. Or was it speakers love big bananas?
Tricky old audiophile? No, that's not it.

Don't worry. I'll keep looking!
I've been away from the 'Gon for about a year and a half.
You guys are still as witty and hilarious as you were when I left.
LOL!
It's good to be back.
Sophomoric humor.  I guess people who understand audio engineering find Caddyshack to be the epitome of humor.  It must be a generational thing. 
C'mon guys, everyone knows it's not the size of the banana, it's how you use it that counts. 
Generally speaking insert as deeply as possible and then tighten your nuts