simple past tense and past participle of knock over

simple past tense and past participle of knock together

simple past tense and past participle of knock off

simple past tense and past participle of knock boots

simple past tense and past participle of knock for a loop

simple past tense and past participle of knock on the door of

simple past tense and past participle of knock at the door of

simple past tense and past participle of knock on the head

simple past tense and past participle of knock it off

One of a class of childish jokes told as a dialog, and usually including a pun, in the following form: