A fork of Rural Dictionary
an insult or a threat that one tells to someone else. once the person who replies with "who's there?" the ejoke abruptly ends with the answer "fuck off" many opther endings can be used to make this insult more interesting or more focused on the insultee.
"hey, knock knock" "who's there?" "fuck off!!!" "hey knock knock" "who's there" "a fuckin dick thats about to get their ass kicked"
When someone knocks and then opens the door, defeating the whole purpose of knocking first.
Guy: Dude, my mom tries to justify her barging in saying she knocked, but all she did was knock in. One of these days she's gonna catch me.
Something that occurs when combustion of some of the air/fuel mixture in the cylinder does not result from propagation of the flame front ignited by the spark plug, but one or more pockets of air/fuel mixture explode outside the envelope of the normal combustion front.
Modern cars are prone to low-speed knocking
when you just don't care what the hell some one is saying. Deminstrate this by knocking on an object twice and saying knock knock.
" Knock, Knock" " Whos there?" " I don't care"