Bombfetti refers to the modern practice of surrounding a character in bits of flying dirt, shrapnel and/or sparks, suggesting that there has just been some kind of explosion or powerful movement and yet invariably the characters stands totaly immobile so it just looks like someone is chucking a handful of debris at them from offscreen.
Tokyo Dive Bomber is the moment where you dip your balls into a sleeping persons open mouth and their reflex action is to move, or close their mouth causing you to squint in pain as you extricate yourself from the situation.
Ian pulled a Tokyo Dive Bomber on that girl at the party the other night, he's lucky to get have gotten out of their in one piece!
The phrase used by Jeremy Clarkson at the end of a Top Gear episode (before he got sacked). Since replaced by 'And on that terrible disappointment' on The Grand Tour.
Sometimes ends on an actual bombshell, almost always ends with Jeremy waving goodbye at the end.