Showstopping
The unexpected forceful grabbing of a man's testicles, especially when he is busy or otherwise engaged.
An intoxicated patron of the local entertainment venue became enraged when heckled by the band's guitarist, so she jumped up onto the stage and "stopped the show".
showstopping submission
when people get sent a message that they think about for a significant portion of their day.
The showstopping submission had people dream about being historical like the things they hear, read, and see.