Think of the cake decorating tool like the piping bag. (My wife uses that to squeeze the frosting out and decorate a cake)
As more and more pressure is applied, the frosting works up to the focal point and then once it "pinches" at the tip it comes out of the funnel, very quickly.
Stocks behave the same way.
Look for the market to finish this up sloping "funnel" and then an extremely fast reversal downward breaking the lower blue line.