What do you call a joke that has a punchline which as been emphatically implied through omission, as in...
[Comedian peeling banana, saying...]
"one skin, two skin, three skin, (pregnant pause)...five skin"
[...arch look and lifted eyebrows]
Benny Hill used to do a lot of this, and I am trying find a name for it. I have looked up types and classes of jokes, but cannot find a definition for it.