depends in the knock knock joke
let's say the Sally joke
Why did Sally fall off the swing?
Because she has no arms
Knock Knock
Who's there?
Not Sally
馃槀馃槀馃槀馃槀馃槀
I got bored one day and watched some pretty neat auditions on a show. one person in particular did a pretty neat yodle... lol amyways i made up a yodle joke.
knock knock
q) who's there?
a) Yoda Layhea
q) yoda layhea who?
a) nice yodeling