Knock, Knock! Who's there? Dumbbell. Dumbbell who? Dumbbell doesn't work so I had to knock!
Knock, Knock! Who's there? Dumbbell. Dumbbell who? Dumbbell doesn't work so I had to knock! 20 0 0 Knock-knock jokes Office and Work Jokes
Knock, Knock!
Who's there?
Dumbbell.
Dumbbell who?
Dumbbell doesn't work so I had to knock!