Knock-knock jokes are a format in which the joke teller sets up with "knock knock," and he and another person follow a back-and-forth script that ends in humorous wordplay. Knock-knock jokes are a variation of Who's Ther... More »

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Engine knock can be caused by an incorrect air/fuel mixture within one or more cylinders. The knocking sound is the fuel burning unevenly and creating shock waves at the wrong times. The waves can damage the cylinder wal... More »

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A knob sensor is a knob-like vibration sensor in a vehicle’s engine that detects knocks in the engine. The sensor is a piezoelectric sensor that listens for knocks or detonation by detecting pressure. More »

A good joke to cheer a person up is, "What do you call a snowman wearing sunglasses?" The answer is, "A puddle." This common type of joke uses a straightforward question to set up a humorous twist in the answer. More »

Some examples of killer comeback lines include to say that the 1880s want their joke back when someone tries to make an insult that implies that something is out of date and to ask if a person's mouth comes with a mute b... More »

A "Your Mama" joke is an insult directed at another person's mother. Although these kind of insults tend to be demeaning, they are generally considered to be tongue-in-cheek and meant to be viewed as light-hearted in nat... More »

A joke regarding a person's forhead is: "Berta’s forehead is so big that, when it rains, her clothes don’t even get wet." The forehead is a popular target for insults, due to its high visibility. More »