A sensible jokeis a devious trap or joke played on someone, regularly making the setback to experience disgrace, perplexity, chaos, or uneasiness. Rational jokes contrast from sureness traps or lies in that the setback finds, or is let in on the joke, instead of being deceived into giving over money or diverse resources. Valuable jokes or traps are generally joyful, reversible and non-invariable, and expect to make the setback feel inept or abused to some degree, yet may in like manner incorporate mercilessness avoiding on tormenting if performed without fitting slyness.

The expression "practical" insinuates the way that the joke involves some person achieving something physical, instead of a verbal or made joke. For example, the joker who is setting up and playing out the rational joke may hang a compartment of water over a passage and mechanical assembly the bowl using pulleys so when the gateway opens the can dumps the water. The joker would then sit tight for the loss to walk around the passage and be sprinkled by the bowl of water. Articles can in like manner be used as a part of practical jokes, like fake disgorging, gnawing gum bugs, impacting stogies, stink bombs, groups and whoopee cushions. In Western culture, April Fools' Day is a day generally given to performing rational jokes. A man who plays out a suitable joke is known as a practical joker. The most surely understood occasions of realistic jokes are experienced inside working environments, as a general rule to astound associates. Covering the PC embellishments with Jell-O, wrapping the work territory with Christmas paper or aluminum obstruct or filling it with inflatables are just a couple instance of office traps.