Because she didn't have any arms. Knock knock. (Who's there?)...not Sarah.
A rehearsal
I'm wringing wet.
Cause she's got no arms. Knock Knock. Who's there? Not Sally.
Swing!
Because she has no arms! Knock knock. Who's there Not Susie!
Because it wasn't big enough to be a Buck.
Because she had no arms. Knock-knock! "Who's there " Not Sarah.